40 changed files with 4942 additions and 1116 deletions
--- a/.claude/settings.json
+++ b/.claude/settings.json
@ -0,0 +1,7 @@
+{
+  "permissions": {
+    "allow": [
+      "Bash(grep:*)"
+    ]
+  }
+}
--- a/.kdev4/subtotaltitle.kdev4
+++ b/.kdev4/subtotaltitle.kdev4
@ -1,2 +0,0 @@
-[Buildset]
-BuildItems=@Variant(\x00\x00\x00\t\x00\x00\x00\x00\x01\x00\x00\x00\x0b\x00\x00\x00\x00\x01\x00\x00\x00\x1a\x00s\x00u\x00b\x00t\x00o\x00t\x00a\x00l\x00t\x00i\x00t\x00l\x00e)
--- a/MIGRATION_MULTITYPE.md
+++ b/MIGRATION_MULTITYPE.md
@ -0,0 +1,166 @@
+# Migration zu Multi-Dokumenttyp-Unterstützung
+
+## Übersicht
+Diese Migration erweitert das SubtotalTitle-Modul von der ausschließlichen Unterstützung für Rechnungen auf:
+- ✅ **Rechnungen** (invoice/facture)
+- ✅ **Angebote** (propal)
+- ✅ **Kundenaufträge** (order/commande)
+
+## Durchgeführte Änderungen
+
+### 1. Datenbank-Schema (✅ Erledigt)
+**Datei:** `sql/llx_facture_lines_manager.sql`
+
+Neue Spalten zur Tabelle `llx_facture_lines_manager`:
+- `document_type` VARCHAR(20) - Art des Dokuments ('invoice', 'propal', 'order')
+- `fk_propal` INT(11) - Referenz auf Angebot
+- `fk_commande` INT(11) - Referenz auf Kundenauftrag
+- `fk_propaldet` INT(11) - Referenz auf Angebots-Zeile
+- `fk_commandedet` INT(11) - Referenz auf Auftrags-Zeile
+
+**Indizes** für bessere Performance hinzugefügt.
+
+### 2. Modul-Konfiguration (✅ Erledigt)
+**Datei:** `core/modules/modSubtotalTitle.class.php`
+
+- Hooks erweitert: `invoicecard`, `propalcard`, `ordercard`
+- Beschreibung aktualisiert
+
+### 3. Helper-Klasse (✅ Neu erstellt)
+**Datei:** `class/DocumentTypeHelper.class.php`
+
+Zentrale Klasse zur Verwaltung verschiedener Dokumenttypen:
+- `getTypeFromContext()` - Erkennt Typ aus Hook-Context
+- `getTypeFromObject()` - Erkennt Typ aus Dolibarr-Objekt
+- `getTableNames()` - Liefert DB-Tabellennamen für jeden Typ
+- `getContext()` - Liefert Hook-Context für jeden Typ
+
+### 4. Hook-Implementierung (✅ Teilweise erledigt)
+**Datei:** `class/actions_subtotaltitle.class.php`
+
+Angepasste Methoden:
+- `formObjectOptions()` - Unterstützt alle 3 Dokumenttypen
+- `printObjectLine()` - Generisch für alle Typen
+- `formAddObjectLine()` - Generisch für alle Typen
+- `syncManagerTable()` - Generisch für alle Typen
+- `renderSectionDropdown()` - Generisch für alle Typen
+- `getNextLineOrder()` - Generisch für alle Typen
+
+**WICHTIG:** Die Methode `renderAllPendingSections()` wurde teilweise angepasst, benötigt aber noch weitere Überprüfung.
+
+### 5. JavaScript (⚠️ Teilweise erledigt)
+**Datei:** `js/subtotaltitle.js`
+
+Hinzugefügt:
+- `getDocumentType()` - Erkennt Dokumenttyp aus URL
+
+**TODO:** JavaScript-Code muss noch vollständig generisch gemacht werden.
+
+### 6. AJAX-Dateien (❌ Noch zu erledigen)
+Alle AJAX-Dateien im Verzeichnis `ajax/` müssen angepasst werden:
+- `create_section.php`
+- `move_section.php`
+- `delete_section.php`
+- `rename_section.php`
+- `create_textline.php`
+- `edit_textline.php`
+- `delete_textline.php`
+- `assign_last_product.php`
+- `move_product.php`
+- `remove_from_section.php`
+- `reorder_all.php`
+- `toggle_subtotal.php`
+- `mass_delete.php`
+- `sync_to_facturedet.php`
+- `get_sections.php`
+- `get_textlines.php`
+- `get_line_orders.php`
+
+**Anpassung:** Jede Datei muss:
+1. `document_type` Parameter empfangen/erkennen
+2. `DocumentTypeHelper` verwenden
+3. Korrekte FK-Spalten verwenden (fk_facture/fk_propal/fk_commande)
+
+## Installationsschritte
+
+### Schritt 1: Datenbank Migration
+```bash
+mysql -u root -p dolibarr < /srv/http/dolibarr/custom/subtotaltitle/sql/llx_facture_lines_manager.sql
+```
+
+### Schritt 2: Modul neu laden
+1. In Dolibarr: Home → Setup → Modules
+2. SubtotalTitle Modul deaktivieren
+3. SubtotalTitle Modul aktivieren
+
+### Schritt 3: Cache leeren
+```bash
+rm -rf /srv/http/dolibarr/documents/admin/temp/*
+```
+
+## Testen
+
+### Test-Checkliste
+
+#### Rechnungen (Bestand - sollte weiter funktionieren)
+- [ ] Section erstellen
+- [ ] Produkte zur Section hinzufügen
+- [ ] Textzeilen erstellen
+- [ ] Zwischensummen anzeigen
+- [ ] Drag & Drop
+- [ ] Sync zu facturedet
+
+#### Angebote (NEU)
+- [ ] Section erstellen
+- [ ] Produkte zur Section hinzufügen
+- [ ] Textzeilen erstellen
+- [ ] Zwischensummen anzeigen
+- [ ] Drag & Drop
+
+#### Kundenaufträge (NEU)
+- [ ] Section erstellen
+- [ ] Produkte zur Section hinzufügen
+- [ ] Textzeilen erstellen
+- [ ] Zwischensummen anzeigen
+- [ ] Drag & Drop
+
+## Bekannte Probleme / TODOs
+
+1. **AJAX-Dateien noch nicht angepasst** - Alle AJAX-Calls verwenden noch `facture_id` statt generischem `document_id`
+
+2. **JavaScript teilweise angepasst** - Viele Funktionen verwenden noch `facture_id` statt `document_id` + `document_type`
+
+3. **Sync-Funktionalität** - Die Sync-zu-PDF-Funktionalität (`in_facturedet`) muss für Angebote und Aufträge getestet werden
+
+4. **PDF-Templates** - Eventuell müssen auch PDF-Templates angepasst werden
+
+5. **Substitutions** - Die Substitutions-Funktionen müssen eventuell erweitert werden
+
+## Nächste Schritte (Priorität)
+
+1. **AJAX-Dateien anpassen** (HOCH)
+   - Template-Beispiel erstellen
+   - Alle AJAX-Dateien nach Template anpassen
+
+2. **JavaScript vollständig generisch machen** (HOCH)
+   - `facture_id` durch `document_id` ersetzen
+   - `document_type` überall hinzufügen
+
+3. **Testen** (MITTEL)
+   - Mit Angeboten testen
+   - Mit Kundenaufträgen testen
+
+4. **renderAllPendingSections überprüfen** (MITTEL)
+   - SQL-Queries auf Korrektheit prüfen
+   - Alle `$doc_key` vs `$document_id` Verwendungen überprüfen
+
+## Support
+
+Bei Fragen oder Problemen:
+- Dokumentation: `/srv/http/dolibarr/custom/subtotaltitle/README.md`
+- Code-Review empfohlen für: `class/actions_subtotaltitle.class.php`
+
+---
+**Version:** 1.1.0
+**Datum:** 2026-01-23
+**Autor:** Eduard Wisch
--- a/README.md
+++ b/README.md
@ -1,88 +1,205 @@
-# SubtotalTitle - Facturedet Sync Update
+# SubtotalTitle - Dolibarr Modul

-## Was ist neu?
- **📄 Checkbox** bei jeder Section/Textzeile/Subtotal: Element zur Rechnung hinzufügen
- **→ Zur Rechnung / ← Aus Rechnung** Buttons: Alle Elemente auf einmal
- **ODT-Variablen** für formatierte Ausgabe im PDF/ODT
+Erweitert Rechnungen, Angebote und Kundenaufträge um **Sections**, **Textzeilen** und **Zwischensummen**.

-## Installation
+---

-### 1. Dateien kopieren
+## 🔑 ODT Template Schlüsselwörter
+
+### Zeilen-Variablen (pro Zeile in row.lines)
+
+| Variable | Wert | Beschreibung |
+|----------|------|--------------|
+| `{line_is_section}` | 1/"" | Zeile ist eine Section (Überschrift) |
+| `{line_is_textline}` | 1/"" | Zeile ist eine Textzeile |
+| `{line_is_subtotal}` | 1/"" | Zeile ist eine Zwischensumme |
+| `{line_is_product}` | 1/"" | Zeile ist ein Produkt mit Produktreferenz |
+| `{line_is_free_line}` | 1/"" | Zeile ist eine freie Zeile (ohne Produktreferenz) |
+| `{line_is_normal}` | 1/"" | Zeile ist normal (special_code = 0) |
+| `{line_is_special}` | 1/"" | Zeile ist Section, Text ODER Subtotal |
+| `{line_special_code}` | 0-102 | special_code Wert der Zeile |
+
+### Globale Variablen (für das gesamte Dokument)
+
+| Variable | Wert | Beschreibung |
+|----------|------|--------------|
+| `{object_has_sections}` | 1/"" | Dokument enthält mindestens eine Section |
+| `{object_has_textlines}` | 1/"" | Dokument enthält mindestens eine Textzeile |
+| `{object_has_speciallines}` | 1/"" | Dokument enthält Sections, Textzeilen oder Subtotals |
+| `{object_count_sections}` | Zahl | Anzahl der Sections im Dokument |
+| `{object_count_textlines}` | Zahl | Anzahl der Textzeilen im Dokument |
+| `{object_count_subtotals}` | Zahl | Anzahl der Zwischensummen im Dokument |
+
+### special_code Werte
+
+| Typ | special_code |
+|-----|-------------|
+| Normales Produkt | 0 |
+| Section (Überschrift) | 100 |
+| Textzeile | 101 |
+| Zwischensumme | 102 |
+
+### ODT Template Beispiel

 ```
-subtotaltitle_complete/
-├── class/
-│   └── actions_subtotaltitle.class.php     → ERSETZEN
-├── ajax/
-│   └── sync_to_facturedet.php              → NEU
-├── js/
-│   └── subtotaltitle_sync.js               → NEU
-├── css/
-│   └── subtotaltitle_sync.css              → Inhalt zu deiner CSS hinzufügen
-└── core/
-    └── substitutions/
-        └── functions_subtotaltitle.lib.php → NEU (Ordner ggf. erstellen!)
-```
+[!-- IF {object_has_sections} --]
+Dieses Dokument enthält {object_count_sections} Section(s).
+[!-- ENDIF {object_has_sections} --]

-### 2. Modul-Descriptor anpassen
-
-In `core/modules/modSubtotalTitle.class.php` ändern:
-
-```php
-$this->module_parts = array(
-    'substitutions' => 1,   // ← Diese Zeile hinzufügen/ändern!
-    'hooks' => array(
-        'data' => array('invoicecard'),
-        'entity' => '0'
-    )
-);
-```
-
-### 3. Modul deaktivieren und wieder aktivieren
-
-Damit die Substitution-Funktion erkannt wird.
-
-## Verwendung
-
-### In der Rechnungsansicht
-
-| Element | Checkbox | Bedeutung |
-|---------|----------|-----------|
-| Section | 📄 | Zur Rechnung hinzufügen |
-| Textzeile | 📄 | Zur Rechnung hinzufügen |
-| Subtotal | 📄 | Zur Rechnung hinzufügen |
-
-**Grüner Rand** = Element ist in der Rechnung/PDF enthalten
-
-### Im ODT-Template
-
-```
 [!-- BEGIN row.lines --]

 [!-- IF {line_is_section} --]
+═══════════════════════════════════════
 {line_desc}
+═══════════════════════════════════════
 [!-- ENDIF {line_is_section} --]

 [!-- IF {line_is_textline} --]
 {line_desc}
 [!-- ENDIF {line_is_textline} --]

-[!-- IF {line_is_normal} --]
+[!-- IF {line_is_product} --]
+{line_pos}	{line_qty}	{line_ref}	{line_desc}	{line_up_locale} €	{line_price_ht_locale} €
+[!-- ENDIF {line_is_product} --]
+
+[!-- IF {line_is_free_line} --]
 {line_pos}	{line_qty}	{line_desc}	{line_up_locale} €	{line_price_ht_locale} €
-[!-- ENDIF {line_is_normal} --]
+[!-- ENDIF {line_is_free_line} --]

 [!-- IF {line_is_subtotal} --]
+───────────────────────────────────────
 Zwischensumme:	{line_price_ht_locale} €
+───────────────────────────────────────
 [!-- ENDIF {line_is_subtotal} --]

 [!-- END row.lines --]
 ```

-## special_code Werte
+---

-| Typ | special_code | ODT-Variable |
-|-----|-------------|--------------|
-| Normales Produkt | 0 | `{line_is_normal}` |
-| Section | 100 | `{line_is_section}` |
-| Textzeile | 101 | `{line_is_textline}` |
-| Zwischensumme | 102 | `{line_is_subtotal}` |
+## 📋 Modul-Funktionen
+
+### Sections (Überschriften)
+- Erstellen von Überschriften zur Strukturierung
+- Produkte können per Drag & Drop oder Link-Button zugeordnet werden
+- Optional: Zwischensumme für jede Section anzeigen
+- Ein-/Ausklappen von Sections
+
+### Textzeilen
+- Freie Textzeilen ohne Preis
+- Ideal für Hinweise, Bedingungen oder Erklärungen
+
+### Zwischensummen
+- Automatische Berechnung der Summe aller Produkte in einer Section
+- Checkbox zum Ein-/Ausschalten pro Section
+
+### Dokument-Synchronisation
+- **📄 Checkbox** bei jeder Section/Textzeile/Subtotal: Element zum Dokument hinzufügen
+- **→ Zum Dokument / ← Aus Dokument** Buttons: Alle Elemente auf einmal synchronisieren
+- **Grüner Rand** = Element ist im Dokument/PDF enthalten
+- Buttons werden nur angezeigt wenn Sections oder Textzeilen vorhanden sind
+
+### Unterstützte Dokumenttypen
+- Rechnungen (Factures)
+- Angebote (Propals)
+- Kundenaufträge (Commandes)
+
+---
+
+## 🔧 Installation
+
+### 1. Dateien kopieren
+
+```
+htdocs/custom/subtotaltitle/
+├── class/
+│   ├── actions_subtotaltitle.class.php
+│   └── DocumentTypeHelper.class.php
+├── ajax/
+│   ├── add_to_section.php
+│   ├── assign_last_product.php
+│   ├── cleanup_subtotals.php
+│   ├── create_section.php
+│   ├── create_textline.php
+│   ├── get_textlines.php
+│   ├── move_section.php
+│   ├── reorder_all.php
+│   ├── sync_to_facturedet.php
+│   └── toggle_subtotal.php
+├── core/
+│   ├── modules/
+│   │   └── modSubtotalTitle.class.php
+│   └── substitutions/
+│       └── functions_subtotaltitle.lib.php
+├── js/
+│   └── subtotaltitle.js
+├── css/
+│   └── subtotaltitle.css
+├── lib/
+│   └── subtotaltitle.lib.php
+└── sql/
+    └── llx_facture_lines_manager.sql
+```
+
+### 2. Modul aktivieren
+
+Im Dolibarr Backend unter **Home → Setup → Modules** das Modul **SubtotalTitle** aktivieren.
+
+Die Datenbanktabelle `llx_facture_lines_manager` wird automatisch erstellt.
+
+### 3. Modul-Konfiguration
+
+In `core/modules/modSubtotalTitle.class.php` muss folgendes gesetzt sein:
+
+```php
+$this->module_parts = array(
+    'substitutions' => 1,   // Für ODT-Variablen
+    'hooks' => array(
+        'data' => array('invoicecard', 'propalcard', 'ordercard'),
+        'entity' => '0'
+    )
+);
+```
+
+---
+
+## 🗄️ Datenbank
+
+### Tabelle: llx_facture_lines_manager
+
+| Feld | Typ | Beschreibung |
+|------|-----|--------------|
+| rowid | INT | Primary Key |
+| fk_facture | INT | FK zu Rechnung |
+| fk_propal | INT | FK zu Angebot |
+| fk_commande | INT | FK zu Kundenauftrag |
+| document_type | VARCHAR(20) | 'invoice', 'propal', 'order' |
+| line_type | VARCHAR(20) | 'section', 'product', 'text', 'subtotal' |
+| fk_facturedet | INT | FK zu llx_facturedet |
+| fk_propaldet | INT | FK zu llx_propaldet |
+| fk_commandedet | INT | FK zu llx_commandedet |
+| title | VARCHAR(255) | Titel für Sections/Text |
+| parent_section | INT | FK zur übergeordneten Section |
+| line_order | INT | Sortierreihenfolge |
+| show_subtotal | TINYINT | Zwischensumme anzeigen (0/1) |
+| collapsed | TINYINT | Section eingeklappt (0/1) |
+| in_facturedet | TINYINT | Im Dokument enthalten (0/1) |
+
+---
+
+## 📝 Changelog
+
+### Version 1.0
+- Initiale Version mit Section-, Text- und Subtotal-Unterstützung
+- ODT-Substitutionsvariablen
+- Multi-Dokument-Support (Rechnungen, Angebote, Kundenaufträge)
+- Drag & Drop Sortierung
+- Dokument-Synchronisation
+
+---
+
+## 📄 Lizenz
+
+Copyright (C) 2026 Eduard Wisch <data@data-it-solution.de>
+
+Dieses Programm ist freie Software: Sie können es unter den Bedingungen der GNU General Public License, wie von der Free Software Foundation veröffentlicht, weitergeben und/oder modifizieren, entweder Version 3 der Lizenz oder (nach Ihrer Wahl) jede spätere Version.
--- a/ajax/add_to_section.php
+++ b/ajax/add_to_section.php
@ -0,0 +1,171 @@
+<?php
+define('NOTOKENRENEWAL', 1);
+require '../../../main.inc.php';
+require_once __DIR__.'/../lib/subtotaltitle.lib.php';
+require_once __DIR__.'/../class/DocumentTypeHelper.class.php';
+
+$line_id = GETPOST('line_id', 'int');
+$section_id = GETPOST('section_id', 'int');
+$document_id = GETPOST('document_id', 'int');
+$docType = GETPOST('document_type', 'alpha');
+
+subtotaltitle_debug_log('🔗 add_to_section: line='.$line_id.', section='.$section_id.', doc='.$document_id.', docType='.$docType);
+
+if (!$line_id || !$section_id || !$document_id || !$docType) {
+    echo json_encode(['success' => false, 'error' => 'Missing parameters']);
+    exit;
+}
+
+$tables = DocumentTypeHelper::getTableNames($docType);
+if (!$tables) {
+    echo json_encode(['success' => false, 'error' => 'Invalid document type']);
+    exit;
+}
+
+$db->begin();
+
+// 1. Hole die Manager-Zeile des Produkts
+$sql = "SELECT rowid, line_order FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+$sql .= " WHERE ".$tables['fk_line']." = ".(int)$line_id;
+$sql .= " AND ".$tables['fk_parent']." = ".(int)$document_id;
+$sql .= " AND document_type = '".$db->escape($docType)."'";
+$sql .= " AND line_type = 'product'";
+$resql = $db->query($sql);
+
+if (!$resql || $db->num_rows($resql) == 0) {
+    $db->rollback();
+    echo json_encode(['success' => false, 'error' => 'Product not found in manager table']);
+    exit;
+}
+
+$product = $db->fetch_object($resql);
+$manager_id = $product->rowid;
+$current_line_order = $product->line_order;
+
+// 2. Hole die line_order der Section
+$sql_section = "SELECT line_order FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+$sql_section .= " WHERE rowid = ".(int)$section_id;
+$sql_section .= " AND line_type = 'section'";
+$sql_section .= " AND document_type = '".$db->escape($docType)."'";
+$resql_section = $db->query($sql_section);
+
+if (!$resql_section || $db->num_rows($resql_section) == 0) {
+    $db->rollback();
+    echo json_encode(['success' => false, 'error' => 'Section not found']);
+    exit;
+}
+
+$section = $db->fetch_object($resql_section);
+$section_line_order = $section->line_order;
+
+// 3. Finde die neue line_order für das Produkt
+// Das Produkt soll IMMER als LETZTES Produkt der Section eingefügt werden
+// (nach allen bestehenden Produkten dieser Section, aber vor der nächsten Section oder dem Subtotal)
+
+// Suche das letzte Produkt/Text dieser Section
+$sql_last = "SELECT MAX(line_order) as max_order FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+$sql_last .= " WHERE ".$tables['fk_parent']." = ".(int)$document_id;
+$sql_last .= " AND document_type = '".$db->escape($docType)."'";
+$sql_last .= " AND parent_section = ".(int)$section_id;
+$sql_last .= " AND line_type IN ('product', 'text')";
+$sql_last .= " AND rowid != ".(int)$manager_id;  // Nicht das aktuelle Produkt selbst
+$resql_last = $db->query($sql_last);
+$obj_last = $db->fetch_object($resql_last);
+
+if ($obj_last && $obj_last->max_order) {
+    // Es gibt bereits Produkte in dieser Section → füge NACH dem letzten ein
+    $new_line_order = (int)$obj_last->max_order + 1;
+} else {
+    // Keine anderen Produkte in der Section → füge direkt nach der Section ein
+    $new_line_order = $section_line_order + 1;
+}
+
+subtotaltitle_debug_log('  current_line_order='.$current_line_order.', section_line_order='.$section_line_order.', new_line_order='.$new_line_order);
+
+// 4. Verschiebe Zeilen
+// WICHTIG: Zuerst das Produkt "entfernen" (temporär auf -1 setzen), dann verschieben, dann einfügen
+$sql_temp = "UPDATE ".MAIN_DB_PREFIX."facture_lines_manager";
+$sql_temp .= " SET line_order = -1";
+$sql_temp .= " WHERE rowid = ".(int)$manager_id;
+$db->query($sql_temp);
+
+if ($current_line_order < $new_line_order) {
+    // Produkt wird nach hinten verschoben
+    // Schließe die Lücke: alle Zeilen zwischen current+1 und new_line_order um -1 verschieben
+    $sql_shift = "UPDATE ".MAIN_DB_PREFIX."facture_lines_manager";
+    $sql_shift .= " SET line_order = line_order - 1";
+    $sql_shift .= " WHERE ".$tables['fk_parent']." = ".(int)$document_id;
+    $sql_shift .= " AND document_type = '".$db->escape($docType)."'";
+    $sql_shift .= " AND line_order > ".(int)$current_line_order;
+    $sql_shift .= " AND line_order <= ".(int)$new_line_order;
+    $db->query($sql_shift);
+    // Korrigiere new_line_order (weil wir verschoben haben)
+    $new_line_order = $new_line_order - 1;
+    subtotaltitle_debug_log('  Nach hinten: Lücke geschlossen, new_line_order korrigiert auf '.$new_line_order);
+} elseif ($current_line_order > $new_line_order) {
+    // Produkt wird nach vorne verschoben
+    // Mache Platz: alle Zeilen ab new_line_order bis current-1 um +1 verschieben
+    $sql_shift = "UPDATE ".MAIN_DB_PREFIX."facture_lines_manager";
+    $sql_shift .= " SET line_order = line_order + 1";
+    $sql_shift .= " WHERE ".$tables['fk_parent']." = ".(int)$document_id;
+    $sql_shift .= " AND document_type = '".$db->escape($docType)."'";
+    $sql_shift .= " AND line_order >= ".(int)$new_line_order;
+    $sql_shift .= " AND line_order < ".(int)$current_line_order;
+    $db->query($sql_shift);
+    subtotaltitle_debug_log('  Nach vorne: Platz gemacht ab position '.$new_line_order);
+}
+
+// 5. Update das Produkt: setze parent_section und neue line_order
+$sql_update = "UPDATE ".MAIN_DB_PREFIX."facture_lines_manager";
+$sql_update .= " SET parent_section = ".(int)$section_id;
+$sql_update .= ", line_order = ".(int)$new_line_order;
+$sql_update .= " WHERE rowid = ".(int)$manager_id;
+$db->query($sql_update);
+
+subtotaltitle_debug_log('✅ Produkt #'.$line_id.' zu Section #'.$section_id.' hinzugefügt mit line_order='.$new_line_order);
+
+// 6. Normalisiere alle line_order (keine Lücken, keine Duplikate)
+$sql = "SELECT rowid FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+$sql .= " WHERE ".$tables['fk_parent']." = ".(int)$document_id;
+$sql .= " AND document_type = '".$db->escape($docType)."'";
+$sql .= " ORDER BY line_order, rowid";  // Bei Gleichstand nach rowid sortieren
+$resql = $db->query($sql);
+
+$new_order = 1;
+while ($obj = $db->fetch_object($resql)) {
+    $sql_upd = "UPDATE ".MAIN_DB_PREFIX."facture_lines_manager";
+    $sql_upd .= " SET line_order = ".$new_order;
+    $sql_upd .= " WHERE rowid = ".(int)$obj->rowid;
+    $db->query($sql_upd);
+    $new_order++;
+}
+subtotaltitle_debug_log('  line_order normalisiert: '.($new_order-1).' Zeilen');
+
+// 7. Sync rang in Detail-Tabelle
+subtotaltitle_debug_log('  Starte rang-Synchronisation für docType='.$docType.' doc_id='.$document_id);
+
+$sql = "SELECT rowid, line_type, ".$tables['fk_line']." as detail_id FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+$sql .= " WHERE ".$tables['fk_parent']." = ".(int)$document_id;
+$sql .= " AND document_type = '".$db->escape($docType)."'";
+$sql .= " AND ".$tables['fk_line']." IS NOT NULL";
+$sql .= " ORDER BY line_order";
+$resql = $db->query($sql);
+
+$rang = 1;
+while ($obj = $db->fetch_object($resql)) {
+    $detail_id = $obj->detail_id;
+    if ($detail_id) {
+        $sql_upd = "UPDATE ".MAIN_DB_PREFIX.$tables['lines_table'];
+        $sql_upd .= " SET rang = ".$rang;
+        $sql_upd .= " WHERE rowid = ".(int)$detail_id;
+        $db->query($sql_upd);
+        subtotaltitle_debug_log('  Sync rang: '.$obj->line_type.' manager#'.$obj->rowid.' detail#'.$detail_id.' → rang='.$rang);
+        $rang++;
+    }
+}
+
+subtotaltitle_debug_log('  rang-Synchronisation abgeschlossen, '.$rang.' Zeilen synchronisiert');
+
+$db->commit();
+
+echo json_encode(['success' => true]);
--- a/ajax/assign_last_product.php
+++ b/ajax/assign_last_product.php
@ -2,22 +2,31 @@
 define('NOTOKENRENEWAL', 1);
 require '../../../main.inc.php';
 require_once __DIR__.'/../lib/subtotaltitle.lib.php';
+require_once __DIR__.'/../class/DocumentTypeHelper.class.php';

 $facture_id = GETPOST('facture_id', 'int');
 $section_id = GETPOST('section_id', 'int');
+$docType = GETPOST('document_type', 'alpha');

-subtotaltitle_debug_log('🔍 assign_last_product: facture=' . $facture_id . ', section=' . $section_id);
+subtotaltitle_debug_log('🔍 assign_last_product: facture=' . $facture_id . ', section=' . $section_id . ', docType=' . $docType);

-if (!$facture_id || !$section_id) {
+if (!$facture_id || !$section_id || !$docType) {
    echo json_encode(['success' => false, 'error' => 'Missing parameters']);
    exit;
 }

+// Hole die richtigen Tabellennamen für diesen Dokumenttyp
+$tables = DocumentTypeHelper::getTableNames($docType);
+if (!$tables) {
+    echo json_encode(['success' => false, 'error' => 'Invalid document type']);
+    exit;
+}
+
 $db->begin();

-// Hole das neueste Produkt dieser Rechnung (höchster rang)
-$sql = "SELECT rowid, rang FROM ".MAIN_DB_PREFIX."facturedet";
-$sql .= " WHERE fk_facture = ".(int)$facture_id;
+// Hole das neueste Produkt dieses Dokuments (höchster rang)
+$sql = "SELECT rowid, rang FROM ".MAIN_DB_PREFIX.$tables['lines_table'];
+$sql .= " WHERE ".$tables['fk_parent']." = ".(int)$facture_id;
 $sql .= " ORDER BY rang DESC LIMIT 1";
 $resql = $db->query($sql);

@ -32,37 +41,67 @@ $product_id = $product->rowid;

 subtotaltitle_debug_log('  → Neustes Produkt: #' . $product_id . ' (rang=' . $product->rang . ')');

-// Prüfe ob schon in Manager-Tabelle
+// Prüfe ob schon in Manager-Tabelle (anhand der Detail-FK-Spalte)
 $sql = "SELECT rowid FROM ".MAIN_DB_PREFIX."facture_lines_manager";
-$sql .= " WHERE fk_facturedet = ".(int)$product_id;
+$sql .= " WHERE ".$tables['fk_line']." = ".(int)$product_id;
 $resql = $db->query($sql);

+// Hole die line_order der Section (Produkt soll direkt danach kommen)
+$sql_section = "SELECT line_order FROM ".MAIN_DB_PREFIX."facture_lines_manager WHERE rowid = ".(int)$section_id;
+$resql_section = $db->query($sql_section);
+$section_order = 1;
+if ($obj_section = $db->fetch_object($resql_section)) {
+    $section_order = $obj_section->line_order;
+}
+
+// Berechne neue line_order: Höchste line_order der Produkte in dieser Section + 1
+// Oder Section line_order + 1 wenn keine Produkte vorhanden
+$sql_max_in_section = "SELECT MAX(line_order) as max_order FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+$sql_max_in_section .= " WHERE parent_section = ".(int)$section_id;
+$sql_max_in_section .= " AND line_type = 'product'";
+$resql_max_section = $db->query($sql_max_in_section);
+$obj_max_section = $db->fetch_object($resql_max_section);
+
+if ($obj_max_section && $obj_max_section->max_order) {
+    $new_line_order = $obj_max_section->max_order + 1;
+} else {
+    $new_line_order = $section_order + 1;
+}
+
+subtotaltitle_debug_log('  → Section line_order='.$section_order.', neue Produkt line_order='.$new_line_order);
+
+// Verschiebe alle nachfolgenden Zeilen um 1 nach hinten
+$sql_shift = "UPDATE ".MAIN_DB_PREFIX."facture_lines_manager";
+$sql_shift .= " SET line_order = line_order + 1";
+$sql_shift .= " WHERE ".$tables['fk_parent']." = ".(int)$facture_id;
+$sql_shift .= " AND document_type = '".$db->escape($docType)."'";
+$sql_shift .= " AND line_order >= ".$new_line_order;
+$db->query($sql_shift);
+
 if ($db->num_rows($resql) == 0) {
    // Produkt fehlt - hinzufügen
-    $next_order = 1;
-    $sql_max = "SELECT MAX(line_order) as max_order FROM ".MAIN_DB_PREFIX."facture_lines_manager";
-    $sql_max .= " WHERE fk_facture = ".(int)$facture_id;
-    $resql_max = $db->query($sql_max);
-    if ($obj = $db->fetch_object($resql_max)) {
-        $next_order = ($obj->max_order ? $obj->max_order + 1 : 1);
-    }
+    // Setze alle FK-Felder explizit (NULL für nicht genutzte)
+    $fk_facture = ($docType === 'invoice') ? (int)$facture_id : 'NULL';
+    $fk_propal = ($docType === 'propal') ? (int)$facture_id : 'NULL';
+    $fk_commande = ($docType === 'order') ? (int)$facture_id : 'NULL';

    $sql_ins = "INSERT INTO ".MAIN_DB_PREFIX."facture_lines_manager";
-    $sql_ins .= " (fk_facture, line_type, fk_facturedet, parent_section, line_order, date_creation)";
-    $sql_ins .= " VALUES (".(int)$facture_id.", 'product', ".(int)$product_id.", ".(int)$section_id.", ".$next_order.", NOW())";
+    $sql_ins .= " (fk_facture, fk_propal, fk_commande, document_type, line_type, ".$tables['fk_line'].", parent_section, line_order, date_creation)";
+    $sql_ins .= " VALUES (".$fk_facture.", ".$fk_propal.", ".$fk_commande.", '".$db->escape($docType)."', 'product', ".(int)$product_id.", ".(int)$section_id.", ".$new_line_order.", NOW())";
    $db->query($sql_ins);

-    subtotaltitle_debug_log('  → Produkt zu Manager-Tabelle hinzugefügt (line_order=' . $next_order . ')');
+    subtotaltitle_debug_log('  → Produkt zu Manager-Tabelle hinzugefügt (line_order=' . $new_line_order . ')');
 } else {
-    // Produkt existiert - UPDATE parent_section
-    subtotaltitle_debug_log('🔵🔵🔵 assign_last_product: Produkt #'.$product_id.' → parent_section='.$section_id);
+    // Produkt existiert - UPDATE parent_section UND line_order
+    subtotaltitle_debug_log('🔵🔵🔵 assign_last_product: Produkt #'.$product_id.' → parent_section='.$section_id.', line_order='.$new_line_order);

    $sql_upd = "UPDATE ".MAIN_DB_PREFIX."facture_lines_manager";
    $sql_upd .= " SET parent_section = ".(int)$section_id;
-    $sql_upd .= " WHERE fk_facturedet = ".(int)$product_id;
+    $sql_upd .= ", line_order = ".$new_line_order;
+    $sql_upd .= " WHERE ".$tables['fk_line']." = ".(int)$product_id;
    $db->query($sql_upd);

-    subtotaltitle_debug_log('  → parent_section updated');
+    subtotaltitle_debug_log('  → parent_section und line_order updated');
 }

 // Neu sortieren
--- a/ajax/check_subtotal.php
+++ b/ajax/check_subtotal.php
@ -0,0 +1,48 @@
+<?php
+/**
+ * Prüft ob ein Subtotal für eine Section existiert
+ */
+define('NOTOKENRENEWAL', 1);
+require '../../../main.inc.php';
+require_once __DIR__.'/../class/DocumentTypeHelper.class.php';
+
+$section_id = GETPOST('section_id', 'int');
+$docType = GETPOST('document_type', 'alpha');
+
+if (!$section_id || !$docType) {
+    echo json_encode(['exists' => false, 'error' => 'Missing parameters']);
+    exit;
+}
+
+$tables = DocumentTypeHelper::getTableNames($docType);
+if (!$tables) {
+    echo json_encode(['exists' => false, 'error' => 'Invalid document type']);
+    exit;
+}
+
+// Prüfe ob Subtotal in Manager-Tabelle existiert
+$sql = "SELECT rowid, ".$tables['fk_line']." as detail_id, in_facturedet FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+$sql .= " WHERE parent_section = ".(int)$section_id;
+$sql .= " AND line_type = 'subtotal'";
+$sql .= " AND document_type = '".$db->escape($docType)."'";
+
+$resql = $db->query($sql);
+$exists = false;
+$subtotal_id = null;
+$detail_id = null;
+$in_facturedet = false;
+
+if ($resql && $db->num_rows($resql) > 0) {
+    $obj = $db->fetch_object($resql);
+    $exists = true;
+    $subtotal_id = $obj->rowid;
+    $detail_id = $obj->detail_id;
+    $in_facturedet = $obj->in_facturedet ? true : false;
+}
+
+echo json_encode([
+    'exists' => $exists,
+    'subtotal_id' => $subtotal_id,
+    'detail_id' => $detail_id,
+    'in_facturedet' => $in_facturedet
+]);
--- a/ajax/cleanup_subtotals.php
+++ b/ajax/cleanup_subtotals.php
@ -0,0 +1,144 @@
+<?php
+/**
+ * Bereinigt verwaiste Subtotals und fehlerhafte Einträge
+ */
+define('NOTOKENRENEWAL', 1);
+require '../../../main.inc.php';
+require_once __DIR__.'/../lib/subtotaltitle.lib.php';
+require_once __DIR__.'/../class/DocumentTypeHelper.class.php';
+
+$facture_id = GETPOST('facture_id', 'int');
+$docType = GETPOST('document_type', 'alpha');
+
+if (!$facture_id || !$docType) {
+    echo json_encode(['success' => false, 'error' => 'Missing parameters']);
+    exit;
+}
+
+$tables = DocumentTypeHelper::getTableNames($docType);
+if (!$tables) {
+    echo json_encode(['success' => false, 'error' => 'Invalid document type']);
+    exit;
+}
+
+$db->begin();
+$deleted = 0;
+$fixed = 0;
+
+// 0. Sections dürfen KEINE parent_section haben - korrigiere das zuerst
+$sql_fix_sections = "UPDATE ".MAIN_DB_PREFIX."facture_lines_manager";
+$sql_fix_sections .= " SET parent_section = NULL";
+$sql_fix_sections .= " WHERE line_type = 'section'";
+$sql_fix_sections .= " AND parent_section IS NOT NULL";
+$sql_fix_sections .= " AND ".$tables['fk_parent']." = ".(int)$facture_id;
+$sql_fix_sections .= " AND document_type = '".$db->escape($docType)."'";
+$resql_fix = $db->query($sql_fix_sections);
+$sections_fixed = $resql_fix ? $db->affected_rows($resql_fix) : 0;
+if ($sections_fixed > 0) {
+    subtotaltitle_debug_log('🧹 ' . $sections_fixed . ' Sections mit falscher parent_section korrigiert');
+    $fixed += $sections_fixed;
+}
+
+// 0b. parent_section = 0 sollte NULL sein
+$sql_fix_zero = "UPDATE ".MAIN_DB_PREFIX."facture_lines_manager";
+$sql_fix_zero .= " SET parent_section = NULL";
+$sql_fix_zero .= " WHERE parent_section = 0";
+$sql_fix_zero .= " AND ".$tables['fk_parent']." = ".(int)$facture_id;
+$sql_fix_zero .= " AND document_type = '".$db->escape($docType)."'";
+$resql_fix_zero = $db->query($sql_fix_zero);
+$zero_fixed = $resql_fix_zero ? $db->affected_rows($resql_fix_zero) : 0;
+if ($zero_fixed > 0) {
+    subtotaltitle_debug_log('🧹 ' . $zero_fixed . ' Einträge mit parent_section=0 korrigiert');
+    $fixed += $zero_fixed;
+}
+
+// 1. Lösche fehlerhafte "Produkte" in der Detail-Tabelle die eigentlich Zwischensummen sind
+// (erkennbar an description LIKE 'Zwischensumme%' aber OHNE special_code 102)
+$sql_bad = "SELECT rowid FROM ".MAIN_DB_PREFIX.$tables['lines_table'];
+$sql_bad .= " WHERE ".$tables['fk_parent']." = ".(int)$facture_id;
+$sql_bad .= " AND description LIKE 'Zwischensumme%'";
+$sql_bad .= " AND (special_code IS NULL OR special_code != 102)";
+$resql_bad = $db->query($sql_bad);
+
+while ($obj = $db->fetch_object($resql_bad)) {
+    // Lösche aus Detail-Tabelle
+    $sql_del = "DELETE FROM ".MAIN_DB_PREFIX.$tables['lines_table']." WHERE rowid = ".(int)$obj->rowid;
+    $db->query($sql_del);
+
+    // Lösche auch aus Manager-Tabelle falls vorhanden
+    $sql_del_mgr = "DELETE FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+    $sql_del_mgr .= " WHERE ".$tables['fk_line']." = ".(int)$obj->rowid;
+    $db->query($sql_del_mgr);
+
+    subtotaltitle_debug_log('🧹 Fehlerhaftes Zwischensummen-Produkt gelöscht: #' . $obj->rowid);
+    $fixed++;
+}
+
+// 2. Lösche Subtotals deren Section show_subtotal = 0 hat
+$sql = "SELECT sub.rowid, sub.".$tables['fk_line']." as detail_id";
+$sql .= " FROM ".MAIN_DB_PREFIX."facture_lines_manager sub";
+$sql .= " INNER JOIN ".MAIN_DB_PREFIX."facture_lines_manager sec ON sec.rowid = sub.parent_section";
+$sql .= " WHERE sub.line_type = 'subtotal'";
+$sql .= " AND sub.".$tables['fk_parent']." = ".(int)$facture_id;
+$sql .= " AND sub.document_type = '".$db->escape($docType)."'";
+$sql .= " AND (sec.show_subtotal = 0 OR sec.show_subtotal IS NULL)";
+$resql = $db->query($sql);
+
+while ($obj = $db->fetch_object($resql)) {
+    // Auch aus Detail-Tabelle löschen falls vorhanden
+    if ($obj->detail_id) {
+        $sql_del_det = "DELETE FROM ".MAIN_DB_PREFIX.$tables['lines_table']." WHERE rowid = ".(int)$obj->detail_id;
+        $db->query($sql_del_det);
+    }
+
+    // Aus Manager löschen
+    $sql_del = "DELETE FROM ".MAIN_DB_PREFIX."facture_lines_manager WHERE rowid = ".(int)$obj->rowid;
+    $db->query($sql_del);
+    $deleted++;
+}
+
+if ($deleted > 0 || $fixed > 0) {
+    subtotaltitle_debug_log('🧹 Cleanup: ' . $deleted . ' verwaiste Subtotals, ' . $fixed . ' fehlerhafte Produkte gelöscht');
+
+    // line_order neu durchnummerieren
+    $sql_reorder = "SELECT rowid FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+    $sql_reorder .= " WHERE ".$tables['fk_parent']." = ".(int)$facture_id;
+    $sql_reorder .= " AND document_type = '".$db->escape($docType)."'";
+    $sql_reorder .= " ORDER BY line_order";
+    $resql = $db->query($sql_reorder);
+
+    $new_order = 1;
+    while ($obj = $db->fetch_object($resql)) {
+        $sql_upd = "UPDATE ".MAIN_DB_PREFIX."facture_lines_manager";
+        $sql_upd .= " SET line_order = ".$new_order;
+        $sql_upd .= " WHERE rowid = ".(int)$obj->rowid;
+        $db->query($sql_upd);
+        $new_order++;
+    }
+
+    // Auch rang in Detail-Tabelle neu durchnummerieren
+    $sql_sync = "SELECT ".$tables['fk_line']." FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+    $sql_sync .= " WHERE ".$tables['fk_parent']." = ".(int)$facture_id;
+    $sql_sync .= " AND document_type = '".$db->escape($docType)."'";
+    $sql_sync .= " AND ".$tables['fk_line']." IS NOT NULL";
+    $sql_sync .= " ORDER BY line_order";
+    $resql_sync = $db->query($sql_sync);
+
+    $rang = 1;
+    while ($obj = $db->fetch_object($resql_sync)) {
+        $fk_line_value = $obj->{$tables['fk_line']};
+        $sql_upd = "UPDATE ".MAIN_DB_PREFIX.$tables['lines_table'];
+        $sql_upd .= " SET rang = ".$rang;
+        $sql_upd .= " WHERE rowid = ".(int)$fk_line_value;
+        $db->query($sql_upd);
+        $rang++;
+    }
+}
+
+$db->commit();
+
+echo json_encode([
+    'success' => true,
+    'deleted' => $deleted,
+    'fixed' => $fixed
+]);
--- a/ajax/create_section.php
+++ b/ajax/create_section.php
@ -1,30 +1,49 @@
 <?php
 define('NOTOKENRENEWAL', 1);
 require '../../../main.inc.php';
+require_once __DIR__.'/../class/DocumentTypeHelper.class.php';

 $facture_id = GETPOST('facture_id', 'int');
 $title = GETPOST('title', 'alpha');
+$docType = GETPOST('document_type', 'alpha'); // NEU!

-if (!$facture_id || !$title) {
+if (!$facture_id || !$title || !$docType) {
    echo json_encode(['success' => false, 'error' => 'Missing parameters']);
    exit;
 }

+// Hole die richtigen Tabellennamen für diesen Dokumenttyp
+$tables = DocumentTypeHelper::getTableNames($docType);
+if (!$tables) {
+    echo json_encode(['success' => false, 'error' => 'Invalid document type']);
+    exit;
+}
+
 // Hole nächste line_order
 $sql = "SELECT MAX(line_order) as max_order";
 $sql .= " FROM ".MAIN_DB_PREFIX."facture_lines_manager";
-$sql .= " WHERE fk_facture = ".(int)$facture_id;
+$sql .= " WHERE ".$tables['fk_parent']." = ".(int)$facture_id;
+$sql .= " AND document_type = '".$db->escape($docType)."'";
 $resql = $db->query($sql);
 $obj = $db->fetch_object($resql);
-$next_order = ($obj->max_order ? $obj->max_order + 1 : 1);
+$next_order = ($obj && $obj->max_order ? $obj->max_order + 1 : 1);
+
+// Erstelle Section - setze alle FK-Felder explizit (NULL für nicht genutzte)
+$fk_facture = ($docType === 'invoice') ? (int)$facture_id : 'NULL';
+$fk_propal = ($docType === 'propal') ? (int)$facture_id : 'NULL';
+$fk_commande = ($docType === 'order') ? (int)$facture_id : 'NULL';

-// Erstelle Section
 $sql = "INSERT INTO ".MAIN_DB_PREFIX."facture_lines_manager";
-$sql .= " (fk_facture, line_type, title, line_order, date_creation)";
-$sql .= " VALUES (".(int)$facture_id.", 'section', '".$db->escape($title)."', ".$next_order.", NOW())";
+$sql .= " (fk_facture, fk_propal, fk_commande, document_type, line_type, title, line_order, date_creation)";
+$sql .= " VALUES (".$fk_facture.", ".$fk_propal.", ".$fk_commande.", '".$db->escape($docType)."', 'section', '".$db->escape($title)."', ".$next_order.", NOW())";

 if ($db->query($sql)) {
-    echo json_encode(['success' => true, 'section_id' => $db->last_insert_id(MAIN_DB_PREFIX."facture_lines_manager")]);
+    $section_id = $db->last_insert_id(MAIN_DB_PREFIX."facture_lines_manager");
+
+    // KEIN automatisches Subtotal mehr - wird nur erstellt wenn Checkbox aktiviert wird
+    // Das Subtotal wird über toggle_subtotal.php erstellt/gelöscht
+
+    echo json_encode(['success' => true, 'section_id' => $section_id]);
 } else {
    echo json_encode(['success' => false, 'error' => $db->lasterror()]);
 }
--- a/ajax/create_textline.php
+++ b/ajax/create_textline.php
@ -6,27 +6,42 @@ if (!$res && file_exists("../../../main.inc.php")) $res = @include "../../../mai
 if (!$res && file_exists("../../../../main.inc.php")) $res = @include "../../../../main.inc.php";
 if (!$res) die("Include of main fails");

+require_once __DIR__.'/../class/DocumentTypeHelper.class.php';
+
 header('Content-Type: application/json');

 $facture_id = GETPOST('facture_id', 'int');
 $text = GETPOST('text', 'restricthtml');
+$docType = GETPOST('document_type', 'alpha');

-if (!$facture_id || !$text) {
+if (!$facture_id || !$text || !$docType) {
    echo json_encode(array('success' => false, 'error' => 'Missing parameters'));
    exit;
 }

+// Hole die richtigen Tabellennamen für diesen Dokumenttyp
+$tables = DocumentTypeHelper::getTableNames($docType);
+if (!$tables) {
+    echo json_encode(array('success' => false, 'error' => 'Invalid document type'));
+    exit;
+}
+
 // Hole nächste line_order
 $sql = "SELECT MAX(line_order) as max_order FROM ".MAIN_DB_PREFIX."facture_lines_manager";
-$sql .= " WHERE fk_facture = ".(int)$facture_id;
+$sql .= " WHERE ".$tables['fk_parent']." = ".(int)$facture_id;
+$sql .= " AND document_type = '".$db->escape($docType)."'";
 $resql = $db->query($sql);
 $obj = $db->fetch_object($resql);
 $next_order = ($obj->max_order ? $obj->max_order + 1 : 1);

-// Füge Textzeile ein
+// Füge Textzeile ein - setze alle FK-Felder explizit (NULL für nicht genutzte)
+$fk_facture = ($docType === 'invoice') ? (int)$facture_id : 'NULL';
+$fk_propal = ($docType === 'propal') ? (int)$facture_id : 'NULL';
+$fk_commande = ($docType === 'order') ? (int)$facture_id : 'NULL';
+
 $sql = "INSERT INTO ".MAIN_DB_PREFIX."facture_lines_manager";
-$sql .= " (fk_facture, line_type, title, line_order, date_creation)";
-$sql .= " VALUES (".(int)$facture_id.", 'text', '".$db->escape($text)."', ".$next_order.", NOW())";
+$sql .= " (fk_facture, fk_propal, fk_commande, document_type, line_type, title, line_order, in_facturedet, date_creation)";
+$sql .= " VALUES (".$fk_facture.", ".$fk_propal.", ".$fk_commande.", '".$db->escape($docType)."', 'text', '".$db->escape($text)."', ".$next_order.", 0, NOW())";

 if ($db->query($sql)) {
    $new_id = $db->last_insert_id(MAIN_DB_PREFIX."facture_lines_manager");
--- a/ajax/delete_section.php
+++ b/ajax/delete_section.php
@ -1,23 +1,31 @@
 <?php
 define('NOTOKENRENEWAL', 1);
 require '../../../main.inc.php';
-require_once DOL_DOCUMENT_ROOT.'/compta/facture/class/facture.class.php';
 require_once __DIR__.'/../lib/subtotaltitle.lib.php';
+require_once __DIR__.'/../class/DocumentTypeHelper.class.php';

 global $user;

 $section_id = GETPOST('section_id', 'int');
 $force = GETPOST('force', 'int');
+$docType = GETPOST('document_type', 'alpha');

-subtotaltitle_debug_log('🔄 delete_section: section=' . $section_id . ', force=' . $force);
+subtotaltitle_debug_log('delete_section: section=' . $section_id . ', force=' . $force . ', docType=' . $docType);

 if (!$section_id) {
    echo json_encode(['success' => false, 'error' => 'Missing parameters']);
    exit;
 }

+// Hole die richtigen Tabellennamen fuer diesen Dokumenttyp
+$tables = DocumentTypeHelper::getTableNames($docType);
+if (!$tables) {
+    echo json_encode(['success' => false, 'error' => 'Invalid document type']);
+    exit;
+}
+
 // 1. Hole Section-Info
-$sql = "SELECT fk_facture FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+$sql = "SELECT ".$tables['fk_parent']." as doc_id FROM ".MAIN_DB_PREFIX."facture_lines_manager";
 $sql .= " WHERE rowid = ".(int)$section_id;
 $sql .= " AND line_type = 'section'";
 $resql = $db->query($sql);
@ -28,56 +36,62 @@ if (!$resql || $db->num_rows($resql) == 0) {
 }

 $section = $db->fetch_object($resql);
-$facture_id = $section->fk_facture;
+$document_id = $section->doc_id;

-// 2. Prüfe Rechnungsstatus
-$facture = new Facture($db);
-$facture->fetch($facture_id);
+// 2. Pruefe Dokumentstatus
+$object = DocumentTypeHelper::loadDocument($docType, $document_id, $db);
+if (!$object) {
+    echo json_encode(['success' => false, 'error' => 'Dokument nicht gefunden']);
+    exit;
+}

-if ($force && $facture->statut != Facture::STATUS_DRAFT) {
-    echo json_encode(['success' => false, 'error' => 'Rechnung ist nicht im Entwurf']);
+$isDraft = DocumentTypeHelper::isDraft($object, $docType);
+if ($force && !$isDraft) {
+    echo json_encode(['success' => false, 'error' => 'Dokument ist nicht im Entwurf']);
    exit;
 }

 // 3. Hole Produkt-IDs DIREKT aus DB
 $product_ids = [];
-$sql_products = "SELECT fk_facturedet FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+$sql_products = "SELECT ".$tables['fk_line']." as detail_id FROM ".MAIN_DB_PREFIX."facture_lines_manager";
 $sql_products .= " WHERE parent_section = ".(int)$section_id;
 $sql_products .= " AND line_type = 'product'";
 $res_products = $db->query($sql_products);

 while ($prod = $db->fetch_object($res_products)) {
-    $product_ids[] = (int)$prod->fk_facturedet;
+    if ($prod->detail_id) {
+        $product_ids[] = (int)$prod->detail_id;
+    }
 }

 $product_count = count($product_ids);
-subtotaltitle_debug_log('🔍 Gefundene Produkte in Section: ' . implode(', ', $product_ids));
+subtotaltitle_debug_log('Gefundene Produkte in Section: ' . implode(', ', $product_ids));

 $db->begin();

-// 4. Force-Delete: Produkte aus Rechnung löschen
+// 4. Force-Delete: Produkte aus Dokument loeschen
 if ($force && $product_count > 0) {
-    subtotaltitle_debug_log('🗑️ Lösche ' . $product_count . ' Zeilen aus Rechnung...');
-    
+    subtotaltitle_debug_log('Loesche ' . $product_count . ' Zeilen aus Dokument...');
+
    foreach ($product_ids as $line_id) {
-        $sql_del_line = "DELETE FROM ".MAIN_DB_PREFIX."facturedet WHERE rowid = ".(int)$line_id;
+        $sql_del_line = "DELETE FROM ".MAIN_DB_PREFIX.$tables['lines_table']." WHERE rowid = ".(int)$line_id;
        $res_del = $db->query($sql_del_line);
-        
+
        if ($res_del) {
-            subtotaltitle_debug_log('✅ facturedet gelöscht: ' . $line_id);
+            subtotaltitle_debug_log('Detail geloescht: ' . $line_id);
        } else {
-            subtotaltitle_debug_log('❌ SQL Fehler: ' . $line_id . ' - ' . $db->lasterror());
+            subtotaltitle_debug_log('SQL Fehler: ' . $line_id . ' - ' . $db->lasterror());
        }
    }
-    
-    // Aus Manager-Tabelle löschen
+
+    // Aus Manager-Tabelle loeschen
    $sql_del = "DELETE FROM ".MAIN_DB_PREFIX."facture_lines_manager";
    $sql_del .= " WHERE parent_section = ".(int)$section_id;
    $sql_del .= " AND line_type = 'product'";
    $db->query($sql_del);
-    
-    subtotaltitle_debug_log('🔴 Force-Delete abgeschlossen: ' . $product_count . ' Produkte');
-    
+
+    subtotaltitle_debug_log('Force-Delete abgeschlossen: ' . $product_count . ' Produkte');
+
 } else if (!$force) {
    // Ohne force: Produkte nur freigeben
    $sql = "UPDATE ".MAIN_DB_PREFIX."facture_lines_manager";
@ -85,36 +99,35 @@ if ($force && $product_count > 0) {
    $sql .= " WHERE parent_section = ".(int)$section_id;
    $sql .= " AND line_type = 'product'";
    $db->query($sql);
-    
-    subtotaltitle_debug_log('🔓 ' . $product_count . ' Produkte freigegeben');
+
+    subtotaltitle_debug_log($product_count . ' Produkte freigegeben');
 }

-// ========== NEU: SUBTOTAL LÖSCHEN ==========
-// Hole Subtotal dieser Section (falls vorhanden)
-$sql_subtotal = "SELECT rowid, fk_facturedet FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+// ========== SUBTOTAL LOESCHEN ==========
+$sql_subtotal = "SELECT rowid, ".$tables['fk_line']." as detail_id FROM ".MAIN_DB_PREFIX."facture_lines_manager";
 $sql_subtotal .= " WHERE parent_section = ".(int)$section_id;
 $sql_subtotal .= " AND line_type = 'subtotal'";
 $res_subtotal = $db->query($sql_subtotal);

 if ($obj_sub = $db->fetch_object($res_subtotal)) {
-    // Falls Subtotal in facturedet ist, dort auch löschen
-    if ($obj_sub->fk_facturedet > 0) {
-        $sql_del_fd = "DELETE FROM ".MAIN_DB_PREFIX."facturedet WHERE rowid = ".(int)$obj_sub->fk_facturedet;
+    // Falls Subtotal in Detail-Tabelle ist, dort auch loeschen
+    if ($obj_sub->detail_id > 0) {
+        $sql_del_fd = "DELETE FROM ".MAIN_DB_PREFIX.$tables['lines_table']." WHERE rowid = ".(int)$obj_sub->detail_id;
        $db->query($sql_del_fd);
-        subtotaltitle_debug_log('✅ Subtotal aus facturedet gelöscht: ' . $obj_sub->fk_facturedet);
+        subtotaltitle_debug_log('Subtotal aus Detail geloescht: ' . $obj_sub->detail_id);
    }

-    // Aus Manager-Tabelle löschen
+    // Aus Manager-Tabelle loeschen
    $sql_del_sub = "DELETE FROM ".MAIN_DB_PREFIX."facture_lines_manager WHERE rowid = ".(int)$obj_sub->rowid;
    $db->query($sql_del_sub);
-    subtotaltitle_debug_log('✅ Subtotal aus Manager gelöscht: ' . $obj_sub->rowid);
+    subtotaltitle_debug_log('Subtotal aus Manager geloescht: ' . $obj_sub->rowid);
 }

-// ========== VERWAISTE SUBTOTALS AUFRÄUMEN ==========
-// Finde alle Subtotals in dieser Rechnung, deren parent_section nicht mehr existiert
-$sql_orphans = "SELECT s.rowid, s.fk_facturedet, s.parent_section
+// ========== VERWAISTE SUBTOTALS AUFRAEUMEN ==========
+$sql_orphans = "SELECT s.rowid, s.".$tables['fk_line']." as detail_id, s.parent_section
                FROM ".MAIN_DB_PREFIX."facture_lines_manager s
-                WHERE s.fk_facture = ".(int)$facture_id."
+                WHERE s.".$tables['fk_parent']." = ".(int)$document_id."
+                AND s.document_type = '".$db->escape($docType)."'
                AND s.line_type = 'subtotal'
                AND s.parent_section IS NOT NULL
                AND NOT EXISTS (
@ -126,36 +139,33 @@ $res_orphans = $db->query($sql_orphans);

 $orphan_count = 0;
 while ($orphan = $db->fetch_object($res_orphans)) {
-    // Aus facturedet löschen (falls vorhanden)
-    if ($orphan->fk_facturedet > 0) {
-        $sql_del_orphan_fd = "DELETE FROM ".MAIN_DB_PREFIX."facturedet WHERE rowid = ".(int)$orphan->fk_facturedet;
+    if ($orphan->detail_id > 0) {
+        $sql_del_orphan_fd = "DELETE FROM ".MAIN_DB_PREFIX.$tables['lines_table']." WHERE rowid = ".(int)$orphan->detail_id;
        $db->query($sql_del_orphan_fd);
-        subtotaltitle_debug_log('🧹 Verwaistes Subtotal aus facturedet gelöscht: ' . $orphan->fk_facturedet . ' (parent_section=' . $orphan->parent_section . ')');
+        subtotaltitle_debug_log('Verwaistes Subtotal aus Detail geloescht: ' . $orphan->detail_id);
    }

-    // Aus Manager-Tabelle löschen
    $sql_del_orphan = "DELETE FROM ".MAIN_DB_PREFIX."facture_lines_manager WHERE rowid = ".(int)$orphan->rowid;
    $db->query($sql_del_orphan);
-    subtotaltitle_debug_log('🧹 Verwaistes Subtotal aus Manager gelöscht: ' . $orphan->rowid);
    $orphan_count++;
 }

 if ($orphan_count > 0) {
-    subtotaltitle_debug_log('🧹 Aufgeräumt: ' . $orphan_count . ' verwaiste Subtotals entfernt');
+    subtotaltitle_debug_log('Aufgeraeumt: ' . $orphan_count . ' verwaiste Subtotals entfernt');
 }
-// ========== ENDE VERWAISTE SUBTOTALS ==========

-// 5. Section selbst löschen
+// 5. Section selbst loeschen
 $sql = "DELETE FROM ".MAIN_DB_PREFIX."facture_lines_manager";
 $sql .= " WHERE rowid = ".(int)$section_id;
 $db->query($sql);

-// Rechnungstotale neu berechnen (nach allen Löschungen)
-$facture->update_price(1);
+// Dokumenttotale neu berechnen
+$object->update_price(1);

 // 6. Neuordnen
 $sql = "SELECT rowid FROM ".MAIN_DB_PREFIX."facture_lines_manager";
-$sql .= " WHERE fk_facture = ".(int)$facture_id;
+$sql .= " WHERE ".$tables['fk_parent']." = ".(int)$document_id;
+$sql .= " AND document_type = '".$db->escape($docType)."'";
 $sql .= " ORDER BY line_order";
 $resql = $db->query($sql);

@ -169,21 +179,24 @@ while ($obj = $db->fetch_object($resql)) {
 }

 // 7. Sync rang
-$sql = "SELECT fk_facturedet FROM ".MAIN_DB_PREFIX."facture_lines_manager";
-$sql .= " WHERE fk_facture = ".(int)$facture_id;
-$sql .= " AND line_type = 'product'";
+$sql = "SELECT ".$tables['fk_line']." as detail_id FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+$sql .= " WHERE ".$tables['fk_parent']." = ".(int)$document_id;
+$sql .= " AND document_type = '".$db->escape($docType)."'";
+$sql .= " AND ".$tables['fk_line']." IS NOT NULL";
 $sql .= " ORDER BY line_order";
 $resql = $db->query($sql);

 $rang = 1;
 while ($obj = $db->fetch_object($resql)) {
-    $sql_upd = "UPDATE ".MAIN_DB_PREFIX."facturedet";
-    $sql_upd .= " SET rang = ".$rang;
-    $sql_upd .= " WHERE rowid = ".(int)$obj->fk_facturedet;
-    $db->query($sql_upd);
-    $rang++;
+    if ($obj->detail_id) {
+        $sql_upd = "UPDATE ".MAIN_DB_PREFIX.$tables['lines_table'];
+        $sql_upd .= " SET rang = ".$rang;
+        $sql_upd .= " WHERE rowid = ".(int)$obj->detail_id;
+        $db->query($sql_upd);
+        $rang++;
+    }
 }

 $db->commit();

-echo json_encode(['success' => true, 'deleted' => $force ? $product_count : 0]);
+echo json_encode(['success' => true, 'deleted' => $force ? $product_count : 0]);
--- a/ajax/delete_textline.php
+++ b/ajax/delete_textline.php
@ -6,20 +6,42 @@ if (!$res && file_exists("../../../main.inc.php")) $res = @include "../../../mai
 if (!$res && file_exists("../../../../main.inc.php")) $res = @include "../../../../main.inc.php";
 if (!$res) die("Include of main fails");
 require_once __DIR__.'/../lib/subtotaltitle.lib.php';
+require_once __DIR__.'/../class/DocumentTypeHelper.class.php';

 header('Content-Type: application/json');

 $textline_id = GETPOST('textline_id', 'int');
+$docType = GETPOST('document_type', 'alpha');

-subtotaltitle_debug_log('🗑️ delete_textline: id=' . $textline_id);
+// Fallback: Wenn kein docType, versuche aus der DB zu ermitteln
+if (!$docType) {
+    $sql_type = "SELECT document_type FROM ".MAIN_DB_PREFIX."facture_lines_manager WHERE rowid = ".(int)$textline_id;
+    $res_type = $db->query($sql_type);
+    if ($res_type && $obj_type = $db->fetch_object($res_type)) {
+        $docType = $obj_type->document_type;
+    }
+}
+
+if (!$docType) {
+    $docType = 'invoice'; // Fallback
+}
+
+subtotaltitle_debug_log('delete_textline: id=' . $textline_id . ', docType=' . $docType);

 if (!$textline_id) {
    echo json_encode(array('success' => false, 'error' => 'Missing parameters'));
    exit;
 }

-// 1. Hole facture_id BEVOR wir löschen
-$sql = "SELECT fk_facture FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+// Hole die richtigen Tabellennamen fuer diesen Dokumenttyp
+$tables = DocumentTypeHelper::getTableNames($docType);
+if (!$tables) {
+    echo json_encode(array('success' => false, 'error' => 'Invalid document type'));
+    exit;
+}
+
+// 1. Hole document_id BEVOR wir loeschen
+$sql = "SELECT ".$tables['fk_parent']." as doc_id FROM ".MAIN_DB_PREFIX."facture_lines_manager";
 $sql .= " WHERE rowid = ".(int)$textline_id;
 $resql = $db->query($sql);

@ -29,31 +51,54 @@ if (!$resql || $db->num_rows($resql) == 0) {
 }

 $obj = $db->fetch_object($resql);
-$facture_id = $obj->fk_facture;
+$document_id = $obj->doc_id;

-// 2. DELETE ausführen
+$db->begin();
+
+// 2. DELETE ausfuehren
 $sql = "DELETE FROM ".MAIN_DB_PREFIX."facture_lines_manager";
 $sql .= " WHERE rowid = ".(int)$textline_id;
 $sql .= " AND line_type = 'text'";

 if (!$db->query($sql)) {
+    $db->rollback();
    echo json_encode(array('success' => false, 'error' => $db->lasterror()));
    exit;
 }

-// 3. Lücken schließen
-$sql = "SELECT rowid FROM ".MAIN_DB_PREFIX."facture_lines_manager
-        WHERE fk_facture = ".(int)$facture_id."
-        ORDER BY line_order";
+// 3. line_order neu durchnummerieren
+$sql = "SELECT rowid FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+$sql .= " WHERE ".$tables['fk_parent']." = ".(int)$document_id;
+$sql .= " AND document_type = '".$db->escape($docType)."'";
+$sql .= " ORDER BY line_order";
 $resql = $db->query($sql);

 $new_order = 1;
 while ($obj = $db->fetch_object($resql)) {
-    $sql_upd = "UPDATE ".MAIN_DB_PREFIX."facture_lines_manager
-                SET line_order = ".$new_order."
-                WHERE rowid = ".(int)$obj->rowid;
+    $sql_upd = "UPDATE ".MAIN_DB_PREFIX."facture_lines_manager SET line_order = ".$new_order." WHERE rowid = ".(int)$obj->rowid;
    $db->query($sql_upd);
    $new_order++;
 }

-echo json_encode(array('success' => true));
+// 4. rang in Detail-Tabelle synchronisieren
+$sql = "SELECT ".$tables['fk_line']." as detail_id FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+$sql .= " WHERE ".$tables['fk_parent']." = ".(int)$document_id;
+$sql .= " AND document_type = '".$db->escape($docType)."'";
+$sql .= " AND ".$tables['fk_line']." IS NOT NULL";
+$sql .= " ORDER BY line_order";
+$resql = $db->query($sql);
+
+$rang = 1;
+while ($obj = $db->fetch_object($resql)) {
+    if ($obj->detail_id) {
+        $sql_upd = "UPDATE ".MAIN_DB_PREFIX.$tables['lines_table']." SET rang = ".$rang." WHERE rowid = ".(int)$obj->detail_id;
+        $db->query($sql_upd);
+        $rang++;
+    }
+}
+
+subtotaltitle_debug_log('delete_textline: rang synchronisiert, ' . ($rang - 1) . ' Zeilen');
+
+$db->commit();
+
+echo json_encode(array('success' => true));
--- a/ajax/edit_textline.php
+++ b/ajax/edit_textline.php
@ -6,26 +6,44 @@ if (!$res && file_exists("../../../main.inc.php")) $res = @include "../../../mai
 if (!$res && file_exists("../../../../main.inc.php")) $res = @include "../../../../main.inc.php";
 if (!$res) die("Include of main fails");
 require_once __DIR__.'/../lib/subtotaltitle.lib.php';
+require_once __DIR__.'/../class/DocumentTypeHelper.class.php';

 header('Content-Type: application/json');

 $textline_id = GETPOST('textline_id', 'int');
 $text = GETPOST('text', 'restricthtml');

-subtotaltitle_debug_log('🔄 edit_textline: id=' . $textline_id);
+subtotaltitle_debug_log('edit_textline: id=' . $textline_id);

 if (!$textline_id || !$text) {
    echo json_encode(array('success' => false, 'error' => 'Missing parameters'));
    exit;
 }

-// Hole erst fk_facturedet (falls Textzeile in Rechnung ist)
-$sql_get = "SELECT fk_facturedet FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+// Hole erst document_type und FK zur Detail-Tabelle
+$sql_get = "SELECT document_type, fk_facturedet, fk_propaldet, fk_commandedet FROM ".MAIN_DB_PREFIX."facture_lines_manager";
 $sql_get .= " WHERE rowid = ".(int)$textline_id;
 $sql_get .= " AND line_type = 'text'";
 $resql = $db->query($sql_get);
 $obj = $db->fetch_object($resql);
-$fk_facturedet = $obj ? $obj->fk_facturedet : null;
+
+if (!$obj) {
+    echo json_encode(array('success' => false, 'error' => 'Textline not found'));
+    exit;
+}
+
+$docType = $obj->document_type ?: 'invoice';
+$tables = DocumentTypeHelper::getTableNames($docType);
+
+// Ermittle FK zur Detail-Tabelle basierend auf Dokumenttyp
+$fk_detail = null;
+if ($docType == 'invoice' && $obj->fk_facturedet > 0) {
+    $fk_detail = $obj->fk_facturedet;
+} elseif ($docType == 'propal' && $obj->fk_propaldet > 0) {
+    $fk_detail = $obj->fk_propaldet;
+} elseif ($docType == 'order' && $obj->fk_commandedet > 0) {
+    $fk_detail = $obj->fk_commandedet;
+}

 // Update Manager-Tabelle
 $sql = "UPDATE ".MAIN_DB_PREFIX."facture_lines_manager";
@ -38,15 +56,15 @@ if (!$db->query($sql)) {
    exit;
 }

-// Falls in facturedet vorhanden, dort auch updaten
-if ($fk_facturedet > 0) {
-    $sql_fd = "UPDATE ".MAIN_DB_PREFIX."facturedet";
+// Falls in Detail-Tabelle vorhanden, dort auch updaten
+if ($fk_detail > 0 && $tables) {
+    $sql_fd = "UPDATE ".MAIN_DB_PREFIX.$tables['lines_table'];
    $sql_fd .= " SET description = '".$db->escape($text)."'";
-    $sql_fd .= " WHERE rowid = ".(int)$fk_facturedet;
+    $sql_fd .= " WHERE rowid = ".(int)$fk_detail;
    $db->query($sql_fd);
-    subtotaltitle_debug_log('✅ Textzeile + facturedet geändert');
+    subtotaltitle_debug_log('Textzeile + Detail geaendert (docType='.$docType.')');
 } else {
-    subtotaltitle_debug_log('✅ Textzeile geändert (nicht in facturedet)');
+    subtotaltitle_debug_log('Textzeile geaendert (nicht in Detail-Tabelle)');
 }

-echo json_encode(array('success' => true, 'synced_facturedet' => ($fk_facturedet > 0)));
+echo json_encode(array('success' => true, 'synced_detail' => ($fk_detail > 0)));
--- a/ajax/fix_section_hierarchy.php
+++ b/ajax/fix_section_hierarchy.php
@ -0,0 +1,182 @@
+<?php
+define('NOTOKENRENEWAL', 1);
+require '../../../main.inc.php';
+require_once __DIR__.'/../lib/subtotaltitle.lib.php';
+require_once __DIR__.'/../class/DocumentTypeHelper.class.php';
+
+$doc_id = GETPOST('doc_id', 'int');
+$docType = GETPOST('document_type', 'alpha');
+
+if (!$doc_id || !$docType) {
+    echo json_encode(['success' => false, 'error' => 'Missing parameters']);
+    exit;
+}
+
+$tables = DocumentTypeHelper::getTableNames($docType);
+if (!$tables) {
+    echo json_encode(['success' => false, 'error' => 'Invalid document type']);
+    exit;
+}
+
+$db->begin();
+
+echo "<h2>Repariere Section-Hierarchie und Sortierung</h2>";
+
+// 1. Alle Sections haben parent_section=NULL (Sections können nicht in Sections sein!)
+echo "<h3>1. Korrigiere Section parent_section Werte</h3>";
+$sql = "UPDATE ".MAIN_DB_PREFIX."facture_lines_manager";
+$sql .= " SET parent_section = NULL";
+$sql .= " WHERE ".$tables['fk_parent']." = ".(int)$doc_id;
+$sql .= " AND document_type = '".$db->escape($docType)."'";
+$sql .= " AND line_type = 'section'";
+$sql .= " AND parent_section IS NOT NULL";
+$result = $db->query($sql);
+echo "✅ Sections korrigiert (parent_section=NULL gesetzt)<br>";
+
+// 2. Baue komplette neue line_order auf
+echo "<h3>2. Neu-Sortierung aller Zeilen</h3>";
+
+$new_order = 1;
+$updates = array();
+
+// Hole die line_order der ersten Section
+$sql = "SELECT MIN(line_order) as first_section_order FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+$sql .= " WHERE ".$tables['fk_parent']." = ".(int)$doc_id;
+$sql .= " AND document_type = '".$db->escape($docType)."'";
+$sql .= " AND line_type = 'section'";
+$resql = $db->query($sql);
+$obj = $db->fetch_object($resql);
+$first_section_order = $obj ? $obj->first_section_order : 9999;
+
+// Freie Produkte VOR den Sections
+$sql = "SELECT rowid FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+$sql .= " WHERE ".$tables['fk_parent']." = ".(int)$doc_id;
+$sql .= " AND document_type = '".$db->escape($docType)."'";
+$sql .= " AND line_type = 'product'";
+$sql .= " AND (parent_section IS NULL OR parent_section = 0)";
+$sql .= " AND line_order < ".(int)$first_section_order;
+$sql .= " ORDER BY line_order";
+$resql = $db->query($sql);
+while ($obj = $db->fetch_object($resql)) {
+    $updates[$obj->rowid] = $new_order;
+    echo "Freies Produkt (VOR Sections) #".$obj->rowid." → line_order=".$new_order."<br>";
+    $new_order++;
+}
+
+// Alle Sections
+$sql = "SELECT rowid FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+$sql .= " WHERE ".$tables['fk_parent']." = ".(int)$doc_id;
+$sql .= " AND document_type = '".$db->escape($docType)."'";
+$sql .= " AND line_type = 'section'";
+$sql .= " ORDER BY line_order";
+$resql = $db->query($sql);
+
+$sections = array();
+while ($obj = $db->fetch_object($resql)) {
+    $sections[] = $obj->rowid;
+}
+
+foreach ($sections as $sec_id) {
+    // Section selbst
+    $updates[$sec_id] = $new_order;
+    echo "<strong>Section #".$sec_id." → line_order=".$new_order."</strong><br>";
+    $new_order++;
+
+    // Produkte dieser Section
+    $sql = "SELECT rowid FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+    $sql .= " WHERE ".$tables['fk_parent']." = ".(int)$doc_id;
+    $sql .= " AND document_type = '".$db->escape($docType)."'";
+    $sql .= " AND line_type = 'product'";
+    $sql .= " AND parent_section = ".(int)$sec_id;
+    $sql .= " ORDER BY line_order";
+    $resql = $db->query($sql);
+
+    while ($obj = $db->fetch_object($resql)) {
+        $updates[$obj->rowid] = $new_order;
+        echo "&nbsp;&nbsp;→ Produkt #".$obj->rowid." → line_order=".$new_order."<br>";
+        $new_order++;
+    }
+
+    // Textzeilen dieser Section
+    $sql = "SELECT rowid FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+    $sql .= " WHERE ".$tables['fk_parent']." = ".(int)$doc_id;
+    $sql .= " AND document_type = '".$db->escape($docType)."'";
+    $sql .= " AND line_type = 'text'";
+    $sql .= " AND parent_section = ".(int)$sec_id;
+    $sql .= " ORDER BY line_order";
+    $resql = $db->query($sql);
+
+    while ($obj = $db->fetch_object($resql)) {
+        $updates[$obj->rowid] = $new_order;
+        echo "&nbsp;&nbsp;→ Text #".$obj->rowid." → line_order=".$new_order."<br>";
+        $new_order++;
+    }
+
+    // Subtotal dieser Section
+    $sql = "SELECT rowid FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+    $sql .= " WHERE ".$tables['fk_parent']." = ".(int)$doc_id;
+    $sql .= " AND document_type = '".$db->escape($docType)."'";
+    $sql .= " AND line_type = 'subtotal'";
+    $sql .= " AND parent_section = ".(int)$sec_id;
+    $resql = $db->query($sql);
+
+    while ($obj = $db->fetch_object($resql)) {
+        $updates[$obj->rowid] = $new_order;
+        echo "&nbsp;&nbsp;→ Subtotal #".$obj->rowid." → line_order=".$new_order."<br>";
+        $new_order++;
+    }
+}
+
+// Freie Produkte NACH den Sections (alle, die noch nicht processed wurden)
+$sql = "SELECT rowid FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+$sql .= " WHERE ".$tables['fk_parent']." = ".(int)$doc_id;
+$sql .= " AND document_type = '".$db->escape($docType)."'";
+$sql .= " AND line_type = 'product'";
+$sql .= " AND (parent_section IS NULL OR parent_section = 0)";
+$sql .= " ORDER BY line_order";
+$resql = $db->query($sql);
+while ($obj = $db->fetch_object($resql)) {
+    if (!isset($updates[$obj->rowid])) {
+        $updates[$obj->rowid] = $new_order;
+        echo "Freies Produkt (NACH Sections) #".$obj->rowid." → line_order=".$new_order."<br>";
+        $new_order++;
+    }
+}
+
+// 3. Updates ausführen
+echo "<h3>3. Schreibe neue line_order Werte</h3>";
+foreach ($updates as $rowid => $order) {
+    $sql = "UPDATE ".MAIN_DB_PREFIX."facture_lines_manager";
+    $sql .= " SET line_order = ".(int)$order;
+    $sql .= " WHERE rowid = ".(int)$rowid;
+    $db->query($sql);
+}
+echo "✅ ".count($updates)." Zeilen neu sortiert<br>";
+
+// 4. Sync rang in Detail-Tabelle
+echo "<h3>4. Synchronisiere rang in Detail-Tabelle</h3>";
+$sql = "SELECT rowid, line_type, ".$tables['fk_line']." as detail_id FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+$sql .= " WHERE ".$tables['fk_parent']." = ".(int)$doc_id;
+$sql .= " AND document_type = '".$db->escape($docType)."'";
+$sql .= " AND ".$tables['fk_line']." IS NOT NULL";
+$sql .= " ORDER BY line_order";
+$resql = $db->query($sql);
+
+$rang = 1;
+while ($obj = $db->fetch_object($resql)) {
+    $detail_id = $obj->detail_id;
+    if ($detail_id) {
+        $sql_upd = "UPDATE ".MAIN_DB_PREFIX.$tables['lines_table'];
+        $sql_upd .= " SET rang = ".$rang;
+        $sql_upd .= " WHERE rowid = ".(int)$detail_id;
+        $db->query($sql_upd);
+        echo $obj->line_type." manager#".$obj->rowid." detail#".$detail_id." → rang=".$rang."<br>";
+        $rang++;
+    }
+}
+echo "✅ ".$rang." Zeilen synchronisiert<br>";
+
+$db->commit();
+
+echo "<h3>✅ Reparatur abgeschlossen!</h3>";
+echo "<p><a href='/dolibarr/commande/card.php?id=".$doc_id."'>Zurück zum Kundenauftrag</a></p>";
--- a/ajax/fix_sections.php
+++ b/ajax/fix_sections.php
@ -0,0 +1,58 @@
+<?php
+/**
+ * Repariert fehlerhafte parent_section Werte
+ * - Sections sollten KEINE parent_section haben
+ * - parent_section = 0 sollte NULL sein
+ */
+define('NOTOKENRENEWAL', 1);
+require '../../../main.inc.php';
+
+$doc_id = GETPOST('doc_id', 'int');
+$docType = GETPOST('document_type', 'alpha');
+
+if (!$doc_id || !$docType) {
+    echo json_encode(['success' => false, 'error' => 'Missing parameters']);
+    exit;
+}
+
+$db->begin();
+$fixed = 0;
+
+// 1. Sections dürfen KEINE parent_section haben
+$sql = "UPDATE ".MAIN_DB_PREFIX."facture_lines_manager";
+$sql .= " SET parent_section = NULL";
+$sql .= " WHERE line_type = 'section'";
+$sql .= " AND parent_section IS NOT NULL";
+$sql .= " AND document_type = '".$db->escape($docType)."'";
+if ($docType == 'invoice') {
+    $sql .= " AND fk_facture = ".(int)$doc_id;
+} elseif ($docType == 'propal') {
+    $sql .= " AND fk_propal = ".(int)$doc_id;
+} elseif ($docType == 'order') {
+    $sql .= " AND fk_commande = ".(int)$doc_id;
+}
+$db->query($sql);
+$fixed += $db->affected_rows();
+
+// 2. parent_section = 0 sollte NULL sein
+$sql = "UPDATE ".MAIN_DB_PREFIX."facture_lines_manager";
+$sql .= " SET parent_section = NULL";
+$sql .= " WHERE parent_section = 0";
+$sql .= " AND document_type = '".$db->escape($docType)."'";
+if ($docType == 'invoice') {
+    $sql .= " AND fk_facture = ".(int)$doc_id;
+} elseif ($docType == 'propal') {
+    $sql .= " AND fk_propal = ".(int)$doc_id;
+} elseif ($docType == 'order') {
+    $sql .= " AND fk_commande = ".(int)$doc_id;
+}
+$db->query($sql);
+$fixed += $db->affected_rows();
+
+$db->commit();
+
+echo json_encode([
+    'success' => true,
+    'fixed' => $fixed,
+    'message' => $fixed . ' Einträge korrigiert'
+]);
--- a/ajax/get_sections.php
+++ b/ajax/get_sections.php
@ -2,20 +2,30 @@
 define('NOTOKENRENEWAL', 1);
 require '../../../main.inc.php';
 require_once __DIR__.'/../lib/subtotaltitle.lib.php';
+require_once __DIR__.'/../class/DocumentTypeHelper.class.php';

 $facture_id = GETPOST('facture_id', 'int');
-subtotaltitle_debug_log('🔄 get_sections: facture=' . $facture_id);
+$docType = GETPOST('document_type', 'alpha');
+subtotaltitle_debug_log('🔄 get_sections: facture=' . $facture_id . ', docType=' . $docType);

-if (!$facture_id) {
-    echo json_encode(array('success' => false, 'error' => 'Missing facture_id'));
+if (!$facture_id || !$docType) {
+    echo json_encode(array('success' => false, 'error' => 'Missing parameters'));
    exit;
 }

-// Hole ALLE Sections
+// Hole die richtigen Tabellennamen für diesen Dokumenttyp
+$tables = DocumentTypeHelper::getTableNames($docType);
+if (!$tables) {
+    echo json_encode(array('success' => false, 'error' => 'Invalid document type'));
+    exit;
+}
+
+// Hole ALLE Sections für diesen Dokumenttyp
 $sql = "SELECT s.rowid, s.title, s.line_order, ";
-$sql .= " (SELECT COUNT(*) FROM ".MAIN_DB_PREFIX."facture_lines_manager p WHERE p.parent_section = s.rowid) as product_count";
+$sql .= " (SELECT COUNT(*) FROM ".MAIN_DB_PREFIX."facture_lines_manager p WHERE p.parent_section = s.rowid AND p.line_type = 'product' AND p.document_type = '".$db->escape($docType)."') as product_count";
 $sql .= " FROM ".MAIN_DB_PREFIX."facture_lines_manager s";
-$sql .= " WHERE s.fk_facture = ".(int)$facture_id;
+$sql .= " WHERE s.".$tables['fk_parent']." = ".(int)$facture_id;
+$sql .= " AND s.document_type = '".$db->escape($docType)."'";
 $sql .= " AND s.line_type = 'section'";
 $sql .= " ORDER BY s.line_order";
 $resql = $db->query($sql);
--- a/ajax/get_textlines.php
+++ b/ajax/get_textlines.php
@ -6,17 +6,28 @@ if (!$res && file_exists("../../../main.inc.php")) $res = @include "../../../mai
 if (!$res && file_exists("../../../../main.inc.php")) $res = @include "../../../../main.inc.php";
 if (!$res) die("Include of main fails");

+require_once __DIR__.'/../class/DocumentTypeHelper.class.php';
+
 header('Content-Type: application/json');

 $facture_id = GETPOST('facture_id', 'int');
+$docType = GETPOST('document_type', 'alpha');

-if (!$facture_id) {
-    echo json_encode(array('success' => false, 'error' => 'Missing facture_id'));
+if (!$facture_id || !$docType) {
+    echo json_encode(array('success' => false, 'error' => 'Missing parameters'));
+    exit;
+}
+
+// Hole die richtigen Tabellennamen für diesen Dokumenttyp
+$tables = DocumentTypeHelper::getTableNames($docType);
+if (!$tables) {
+    echo json_encode(array('success' => false, 'error' => 'Invalid document type'));
    exit;
 }

 $sql = "SELECT rowid, title, line_order, parent_section FROM ".MAIN_DB_PREFIX."facture_lines_manager";
-$sql .= " WHERE fk_facture = ".(int)$facture_id;
+$sql .= " WHERE ".$tables['fk_parent']." = ".(int)$facture_id;
+$sql .= " AND document_type = '".$db->escape($docType)."'";
 $sql .= " AND line_type = 'text'";
 $sql .= " ORDER BY line_order";
 $resql = $db->query($sql);
--- a/ajax/import_from_origin.php
+++ b/ajax/import_from_origin.php
@ -0,0 +1,565 @@
+<?php
+/* Copyright (C) 2026      Eduard Wisch    <data@data-it-solution.de>
+ *
+ * Import sections/textlines from origin document (Angebot→Auftrag→Rechnung)
+ */
+
+define('NOTOKENRENEWAL', 1);
+
+$res = 0;
+if (!$res && file_exists("../../../main.inc.php")) $res = @include "../../../main.inc.php";
+if (!$res && file_exists("../../../../main.inc.php")) $res = @include "../../../../main.inc.php";
+if (!$res) die("Include of main fails");
+
+require_once DOL_DOCUMENT_ROOT.'/compta/facture/class/facture.class.php';
+require_once DOL_DOCUMENT_ROOT.'/comm/propal/class/propal.class.php';
+require_once DOL_DOCUMENT_ROOT.'/commande/class/commande.class.php';
+dol_include_once('/subtotaltitle/lib/subtotaltitle.lib.php');
+require_once __DIR__.'/../class/DocumentTypeHelper.class.php';
+
+header('Content-Type: application/json');
+
+$action = GETPOST('action', 'alpha');
+$target_id = GETPOST('target_id', 'int');
+$target_type = GETPOST('target_type', 'alpha');
+
+subtotaltitle_debug_log('📥 import_from_origin: action='.$action.', target_id='.$target_id.', target_type='.$target_type);
+
+if (!$target_id || !$target_type) {
+    echo json_encode(array('success' => false, 'error' => 'Missing parameters'));
+    exit;
+}
+
+// Hole die richtigen Tabellennamen für Ziel-Dokumenttyp
+$target_tables = DocumentTypeHelper::getTableNames($target_type);
+if (!$target_tables) {
+    echo json_encode(array('success' => false, 'error' => 'Invalid target document type'));
+    exit;
+}
+
+/**
+ * Ermittelt das Ursprungsdokument basierend auf Zieldokument
+ * Dolibarr speichert die Herkunft in origin/origin_id ODER in llx_element_element
+ */
+function getOriginDocument($db, $target_id, $target_type)
+{
+    $target_tables = DocumentTypeHelper::getTableNames($target_type);
+    if (!$target_tables) {
+        return null;
+    }
+
+    // Lade Zieldokument
+    $target_doc = DocumentTypeHelper::loadDocument($target_type, $target_id, $db);
+    if (!$target_doc) {
+        subtotaltitle_debug_log('❌ Zieldokument nicht gefunden: '.$target_type.' #'.$target_id);
+        return null;
+    }
+
+    subtotaltitle_debug_log('🔍 Zieldokument geladen: element='.$target_doc->element.', origin='.($target_doc->origin ?? 'NULL').', origin_id='.($target_doc->origin_id ?? 'NULL'));
+
+    // Methode 1: Direkte Objekteigenschaften prüfen
+    $origin = $target_doc->origin ?? null;
+    $origin_id = $target_doc->origin_id ?? null;
+
+    // Methode 2: Falls nicht gesetzt, prüfe llx_element_element Tabelle
+    if (empty($origin) || empty($origin_id)) {
+        $elementType = $target_doc->element; // z.B. 'commande', 'facture', 'propal'
+        subtotaltitle_debug_log('🔍 Suche in element_element für '.$elementType.' #'.$target_id);
+
+        $sql_origin = "SELECT fk_source, sourcetype FROM ".MAIN_DB_PREFIX."element_element";
+        $sql_origin .= " WHERE fk_target = ".(int)$target_id;
+        $sql_origin .= " AND targettype = '".$db->escape($elementType)."'";
+        $sql_origin .= " LIMIT 1";
+
+        subtotaltitle_debug_log('SQL: '.$sql_origin);
+
+        $res_origin = $db->query($sql_origin);
+        if ($res_origin && $db->num_rows($res_origin) > 0) {
+            $obj_origin = $db->fetch_object($res_origin);
+            $origin = $obj_origin->sourcetype;
+            $origin_id = $obj_origin->fk_source;
+            subtotaltitle_debug_log('✅ Gefunden in element_element: '.$origin.' #'.$origin_id);
+        } else {
+            subtotaltitle_debug_log('❌ Kein Eintrag in element_element gefunden');
+        }
+    }
+
+    // Prüfe ob origin gesetzt ist
+    if (empty($origin) || empty($origin_id)) {
+        subtotaltitle_debug_log('❌ Kein Ursprungsdokument verknüpft (weder direkt noch in element_element)');
+        return null;
+    }
+
+    // Mappe Dolibarr origin zu unserem document_type
+    $origin_type_map = array(
+        'propal' => 'propal',
+        'commande' => 'order',
+        'facture' => 'invoice',
+        'order_supplier' => null, // Lieferantenauftrag - nicht unterstützt
+        'invoice_supplier' => null // Lieferantenrechnung - nicht unterstützt
+    );
+
+    $origin_type = isset($origin_type_map[$origin]) ? $origin_type_map[$origin] : null;
+    if (!$origin_type) {
+        subtotaltitle_debug_log('❌ Nicht unterstützter Ursprungstyp: '.$origin);
+        return null;
+    }
+
+    // Lade Ursprungsdokument
+    $origin_doc = DocumentTypeHelper::loadDocument($origin_type, $origin_id, $db);
+    if (!$origin_doc) {
+        subtotaltitle_debug_log('❌ Ursprungsdokument nicht gefunden: '.$origin_type.' #'.$origin_id);
+        return null;
+    }
+
+    subtotaltitle_debug_log('✅ Ursprungsdokument gefunden: '.$origin_type.' #'.$origin_id);
+
+    return array(
+        'document' => $origin_doc,
+        'type' => $origin_type,
+        'id' => $origin_id
+    );
+}
+
+/**
+ * Sucht die passende Produktzeile im Zieldokument basierend auf fk_product
+ */
+function findMatchingProductLine($db, $target_id, $target_type, $source_product_id)
+{
+    if (!$source_product_id) {
+        return null;
+    }
+
+    $target_tables = DocumentTypeHelper::getTableNames($target_type);
+
+    // Suche nach Zeile mit gleichem Produkt im Zieldokument
+    $sql = "SELECT rowid FROM ".MAIN_DB_PREFIX.$target_tables['lines_table'];
+    $sql .= " WHERE ".$target_tables['fk_parent']." = ".(int)$target_id;
+    $sql .= " AND fk_product = ".(int)$source_product_id;
+    $sql .= " LIMIT 1";
+
+    $resql = $db->query($sql);
+    if ($resql && $db->num_rows($resql) > 0) {
+        $obj = $db->fetch_object($resql);
+        return $obj->rowid;
+    }
+
+    return null;
+}
+
+if ($action == 'check') {
+    // ========== PRÜFE OB IMPORT MÖGLICH IST ==========
+
+    $origin = getOriginDocument($db, $target_id, $target_type);
+    if (!$origin) {
+        echo json_encode(array(
+            'success' => true,
+            'has_origin' => false,
+            'message' => 'Kein Ursprungsdokument verknüpft'
+        ));
+        exit;
+    }
+
+    $origin_tables = DocumentTypeHelper::getTableNames($origin['type']);
+
+    // Zähle Sections und Textlines im Ursprungsdokument
+    $sql = "SELECT COUNT(*) as cnt, line_type FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+    $sql .= " WHERE ".$origin_tables['fk_parent']." = ".(int)$origin['id'];
+    $sql .= " AND document_type = '".$db->escape($origin['type'])."'";
+    $sql .= " AND line_type IN ('section', 'text')";
+    $sql .= " GROUP BY line_type";
+
+    $resql = $db->query($sql);
+    $counts = array('section' => 0, 'text' => 0);
+    while ($obj = $db->fetch_object($resql)) {
+        $counts[$obj->line_type] = $obj->cnt;
+    }
+
+    // Prüfe ob im Zieldokument schon Sections existieren
+    $sql_target = "SELECT COUNT(*) as cnt FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+    $sql_target .= " WHERE ".$target_tables['fk_parent']." = ".(int)$target_id;
+    $sql_target .= " AND document_type = '".$db->escape($target_type)."'";
+    $sql_target .= " AND line_type = 'section'";
+    $res_target = $db->query($sql_target);
+    $obj_target = $db->fetch_object($res_target);
+    $has_existing = ($obj_target && $obj_target->cnt > 0);
+
+    // Ermittle Anzeigename für Ursprungsdokument
+    $origin_name = '';
+    $origin_ref = $origin['document']->ref;
+    switch ($origin['type']) {
+        case 'propal':
+            $origin_name = 'Angebot '.$origin_ref;
+            break;
+        case 'order':
+            $origin_name = 'Auftrag '.$origin_ref;
+            break;
+        case 'invoice':
+            $origin_name = 'Rechnung '.$origin_ref;
+            break;
+    }
+
+    echo json_encode(array(
+        'success' => true,
+        'has_origin' => true,
+        'origin_type' => $origin['type'],
+        'origin_id' => $origin['id'],
+        'origin_ref' => $origin_ref,
+        'origin_name' => $origin_name,
+        'sections_count' => (int)$counts['section'],
+        'textlines_count' => (int)$counts['text'],
+        'has_existing' => $has_existing,
+        'can_import' => ($counts['section'] > 0 || $counts['text'] > 0)
+    ));
+
+} elseif ($action == 'import') {
+    // ========== KOMPLETTER IMPORT MIT RANG-SYNCHRONISATION ==========
+    // Strategie:
+    // 1. Lösche bestehende Einträge in Manager-Tabelle für Zieldokument
+    // 2. Importiere alle Sections/Textlines/Subtotals aus Ursprung
+    // 3. Synchronisiere ALLE Produkte aus Ziel-Dolibarr-Tabelle in Manager-Tabelle
+    // 4. Ordne Produkte den Sections zu basierend auf fk_product Matching
+    // 5. Produkte die NUR im Zieldokument sind, kommen am Ende
+    // 6. Neu-Nummerierung line_order UND rang in beiden Tabellen
+
+    $origin = getOriginDocument($db, $target_id, $target_type);
+    if (!$origin) {
+        echo json_encode(array('success' => false, 'error' => 'Kein Ursprungsdokument gefunden'));
+        exit;
+    }
+
+    $origin_tables = DocumentTypeHelper::getTableNames($origin['type']);
+
+    // Starte Transaktion
+    $db->begin();
+
+    $imported_sections = 0;
+    $imported_textlines = 0;
+    $imported_subtotals = 0;
+    $product_assignments = 0;
+    $new_products = 0;
+    $section_mapping = array(); // Alte Section-ID => Neue Section-ID
+
+    try {
+        // ============================================================
+        // SCHRITT 1: Lösche bestehende Einträge in Manager-Tabelle
+        // ============================================================
+        subtotaltitle_debug_log('🗑️ Lösche bestehende Manager-Einträge...');
+
+        $sql_delete = "DELETE FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+        $sql_delete .= " WHERE ".$target_tables['fk_parent']." = ".(int)$target_id;
+        $sql_delete .= " AND document_type = '".$db->escape($target_type)."'";
+        $db->query($sql_delete);
+
+        subtotaltitle_debug_log('✅ Bestehende Einträge gelöscht');
+
+        // FK-Werte für Zieldokument
+        $fk_facture = ($target_type === 'invoice') ? (int)$target_id : 'NULL';
+        $fk_propal = ($target_type === 'propal') ? (int)$target_id : 'NULL';
+        $fk_commande = ($target_type === 'order') ? (int)$target_id : 'NULL';
+
+        // ============================================================
+        // SCHRITT 2: Baue Mapping fk_product → Section aus Ursprung
+        // ============================================================
+        subtotaltitle_debug_log('🗺️ Erstelle fk_product → Section Mapping...');
+
+        $product_section_map = array(); // fk_product => origin_section_id
+
+        $sql_origin_products = "SELECT m.parent_section, d.fk_product FROM ".MAIN_DB_PREFIX."facture_lines_manager m";
+        $sql_origin_products .= " LEFT JOIN ".MAIN_DB_PREFIX.$origin_tables['lines_table']." d ON d.rowid = m.".$origin_tables['fk_line'];
+        $sql_origin_products .= " WHERE m.".$origin_tables['fk_parent']." = ".(int)$origin['id'];
+        $sql_origin_products .= " AND m.document_type = '".$db->escape($origin['type'])."'";
+        $sql_origin_products .= " AND m.line_type = 'product'";
+        $sql_origin_products .= " AND m.parent_section IS NOT NULL";
+        $sql_origin_products .= " AND d.fk_product IS NOT NULL";
+
+        $res_origin_products = $db->query($sql_origin_products);
+        while ($row = $db->fetch_object($res_origin_products)) {
+            $product_section_map[$row->fk_product] = $row->parent_section;
+            subtotaltitle_debug_log('  Mapping: fk_product='.$row->fk_product.' → Section #'.$row->parent_section);
+        }
+
+        subtotaltitle_debug_log('✅ '.count($product_section_map).' Produkt-Section Mappings erstellt');
+
+        // ============================================================
+        // SCHRITT 3: Hole ALLE Einträge aus Ursprung (sortiert nach line_order)
+        // ============================================================
+        subtotaltitle_debug_log('📦 Hole alle Einträge aus Ursprungsdokument...');
+
+        $sql_origin_all = "SELECT m.*, d.fk_product FROM ".MAIN_DB_PREFIX."facture_lines_manager m";
+        $sql_origin_all .= " LEFT JOIN ".MAIN_DB_PREFIX.$origin_tables['lines_table']." d ON d.rowid = m.".$origin_tables['fk_line'];
+        $sql_origin_all .= " WHERE m.".$origin_tables['fk_parent']." = ".(int)$origin['id'];
+        $sql_origin_all .= " AND m.document_type = '".$db->escape($origin['type'])."'";
+        $sql_origin_all .= " ORDER BY m.line_order";
+
+        $res_origin_all = $db->query($sql_origin_all);
+
+        // Sammle alle Einträge gruppiert
+        $origin_entries = array();
+        while ($entry = $db->fetch_object($res_origin_all)) {
+            $origin_entries[] = $entry;
+        }
+
+        subtotaltitle_debug_log('✅ '.count($origin_entries).' Einträge aus Ursprung geladen');
+
+        // ============================================================
+        // SCHRITT 4: Hole ALLE Produktzeilen aus Zieldokument (Dolibarr-Tabelle)
+        // ============================================================
+        subtotaltitle_debug_log('📦 Hole alle Produkte aus Zieldokument...');
+
+        $sql_target_products = "SELECT rowid, fk_product, rang FROM ".MAIN_DB_PREFIX.$target_tables['lines_table'];
+        $sql_target_products .= " WHERE ".$target_tables['fk_parent']." = ".(int)$target_id;
+        $sql_target_products .= " ORDER BY rang";
+
+        $res_target_products = $db->query($sql_target_products);
+        $target_products = array();
+        while ($row = $db->fetch_object($res_target_products)) {
+            $target_products[$row->rowid] = $row;
+        }
+
+        subtotaltitle_debug_log('✅ '.count($target_products).' Produkte aus Zieldokument geladen');
+
+        // Sammle fk_products die schon zugeordnet werden (aus Ursprung)
+        $assigned_fk_products = array();
+        $assigned_line_ids = array();
+
+        // ============================================================
+        // SCHRITT 5: Importiere Structure aus Ursprung mit richtiger Reihenfolge
+        // ============================================================
+        subtotaltitle_debug_log('🏗️ Importiere Struktur aus Ursprungsdokument...');
+
+        $line_order = 10;
+        $rang = 1;
+        $new_entries = array(); // Sammle alle neuen Einträge für spätere Rang-Zuweisung
+
+        foreach ($origin_entries as $entry) {
+            if ($entry->line_type === 'section') {
+                // Section importieren
+                $sql_insert = "INSERT INTO ".MAIN_DB_PREFIX."facture_lines_manager";
+                $sql_insert .= " (fk_facture, fk_propal, fk_commande, document_type, line_type, title,";
+                $sql_insert .= " parent_section, show_subtotal, collapsed, line_order, in_facturedet, date_creation)";
+                $sql_insert .= " VALUES (".$fk_facture.", ".$fk_propal.", ".$fk_commande.",";
+                $sql_insert .= " '".$db->escape($target_type)."', 'section',";
+                $sql_insert .= " '".$db->escape($entry->title)."',";
+                $sql_insert .= " NULL,";
+                $sql_insert .= " ".(int)$entry->show_subtotal.",";
+                $sql_insert .= " ".(int)$entry->collapsed.",";
+                $sql_insert .= " ".(int)$line_order.",";
+                $sql_insert .= " 0, NOW())";
+
+                if (!$db->query($sql_insert)) {
+                    throw new Exception('Fehler beim Erstellen der Section: '.$db->lasterror());
+                }
+
+                $new_section_id = $db->last_insert_id(MAIN_DB_PREFIX."facture_lines_manager");
+                $section_mapping[$entry->rowid] = $new_section_id;
+                $imported_sections++;
+                $line_order += 10;
+
+                subtotaltitle_debug_log('✅ Section: "'.$entry->title.'" (#'.$entry->rowid.' → #'.$new_section_id.')');
+
+            } elseif ($entry->line_type === 'text') {
+                // Textline importieren
+                $new_parent = isset($section_mapping[$entry->parent_section])
+                    ? (int)$section_mapping[$entry->parent_section]
+                    : 'NULL';
+
+                $sql_insert = "INSERT INTO ".MAIN_DB_PREFIX."facture_lines_manager";
+                $sql_insert .= " (fk_facture, fk_propal, fk_commande, document_type, line_type, title,";
+                $sql_insert .= " parent_section, line_order, in_facturedet, date_creation)";
+                $sql_insert .= " VALUES (".$fk_facture.", ".$fk_propal.", ".$fk_commande.",";
+                $sql_insert .= " '".$db->escape($target_type)."', 'text',";
+                $sql_insert .= " '".$db->escape($entry->title)."',";
+                $sql_insert .= " ".$new_parent.",";
+                $sql_insert .= " ".(int)$line_order.",";
+                $sql_insert .= " 0, NOW())";
+
+                if (!$db->query($sql_insert)) {
+                    throw new Exception('Fehler beim Erstellen der Textline: '.$db->lasterror());
+                }
+
+                $imported_textlines++;
+                $line_order += 10;
+
+                subtotaltitle_debug_log('✅ Textline: "'.$entry->title.'"');
+
+            } elseif ($entry->line_type === 'subtotal') {
+                // Subtotal importieren (nur wenn parent Section existiert)
+                if (!isset($section_mapping[$entry->parent_section])) {
+                    continue;
+                }
+
+                $new_parent = (int)$section_mapping[$entry->parent_section];
+
+                $sql_insert = "INSERT INTO ".MAIN_DB_PREFIX."facture_lines_manager";
+                $sql_insert .= " (fk_facture, fk_propal, fk_commande, document_type, line_type, title,";
+                $sql_insert .= " parent_section, line_order, in_facturedet, date_creation)";
+                $sql_insert .= " VALUES (".$fk_facture.", ".$fk_propal.", ".$fk_commande.",";
+                $sql_insert .= " '".$db->escape($target_type)."', 'subtotal',";
+                $sql_insert .= " '".$db->escape($entry->title)."',";
+                $sql_insert .= " ".$new_parent.",";
+                $sql_insert .= " ".(int)$line_order.",";
+                $sql_insert .= " 0, NOW())";
+
+                if (!$db->query($sql_insert)) {
+                    throw new Exception('Fehler beim Erstellen des Subtotals: '.$db->lasterror());
+                }
+
+                $imported_subtotals++;
+                $line_order += 10;
+
+                subtotaltitle_debug_log('✅ Subtotal für Section #'.$new_parent);
+
+            } elseif ($entry->line_type === 'product' && !empty($entry->fk_product)) {
+                // Produkt - finde passende Zeile im Zieldokument
+                $target_line_id = null;
+
+                foreach ($target_products as $tp_id => $tp) {
+                    if ($tp->fk_product == $entry->fk_product && !isset($assigned_line_ids[$tp_id])) {
+                        $target_line_id = $tp_id;
+                        $assigned_line_ids[$tp_id] = true;
+                        $assigned_fk_products[$entry->fk_product] = true;
+                        break;
+                    }
+                }
+
+                if ($target_line_id) {
+                    $new_parent = isset($section_mapping[$entry->parent_section])
+                        ? (int)$section_mapping[$entry->parent_section]
+                        : 'NULL';
+
+                    $sql_insert = "INSERT INTO ".MAIN_DB_PREFIX."facture_lines_manager";
+                    $sql_insert .= " (fk_facture, fk_propal, fk_commande, ".$target_tables['fk_line'].", document_type,";
+                    $sql_insert .= " line_type, parent_section, line_order, in_facturedet, date_creation)";
+                    $sql_insert .= " VALUES (".$fk_facture.", ".$fk_propal.", ".$fk_commande.",";
+                    $sql_insert .= " ".(int)$target_line_id.", '".$db->escape($target_type)."',";
+                    $sql_insert .= " 'product', ".$new_parent.", ".(int)$line_order.", 1, NOW())";
+
+                    if (!$db->query($sql_insert)) {
+                        throw new Exception('Fehler beim Erstellen des Produkts: '.$db->lasterror());
+                    }
+
+                    // Speichere für Rang-Update
+                    $new_entries[] = array(
+                        'type' => 'product',
+                        'line_id' => $target_line_id,
+                        'rang' => $rang
+                    );
+
+                    $product_assignments++;
+                    $line_order += 10;
+                    $rang++;
+
+                    subtotaltitle_debug_log('✅ Produkt: fk_product='.$entry->fk_product.' → Section #'.$new_parent.' (Line #'.$target_line_id.')');
+                }
+            }
+        }
+
+        // ============================================================
+        // SCHRITT 6: Füge neue Produkte hinzu (nur im Zieldokument)
+        // ============================================================
+        subtotaltitle_debug_log('➕ Füge neue Produkte hinzu (nur im Zieldokument)...');
+
+        foreach ($target_products as $tp_id => $tp) {
+            if (isset($assigned_line_ids[$tp_id])) {
+                continue; // Schon zugeordnet
+            }
+
+            // Produkt ist NEU - füge am Ende hinzu (ohne Section)
+            $sql_insert = "INSERT INTO ".MAIN_DB_PREFIX."facture_lines_manager";
+            $sql_insert .= " (fk_facture, fk_propal, fk_commande, ".$target_tables['fk_line'].", document_type,";
+            $sql_insert .= " line_type, parent_section, line_order, in_facturedet, date_creation)";
+            $sql_insert .= " VALUES (".$fk_facture.", ".$fk_propal.", ".$fk_commande.",";
+            $sql_insert .= " ".(int)$tp_id.", '".$db->escape($target_type)."',";
+            $sql_insert .= " 'product', NULL, ".(int)$line_order.", 1, NOW())";
+
+            if (!$db->query($sql_insert)) {
+                throw new Exception('Fehler beim Erstellen des neuen Produkts: '.$db->lasterror());
+            }
+
+            // Speichere für Rang-Update
+            $new_entries[] = array(
+                'type' => 'product',
+                'line_id' => $tp_id,
+                'rang' => $rang
+            );
+
+            $new_products++;
+            $line_order += 10;
+            $rang++;
+
+            subtotaltitle_debug_log('➕ Neues Produkt: Line #'.$tp_id.' (fk_product='.$tp->fk_product.')');
+        }
+
+        // ============================================================
+        // SCHRITT 7: Finale Neu-Nummerierung in beiden Tabellen
+        // ============================================================
+        subtotaltitle_debug_log('🔄 Finale Neu-Nummerierung in beiden Tabellen...');
+
+        // A) line_order in Manager-Tabelle (basierend auf tatsächlicher Reihenfolge)
+        $sql_reorder = "SELECT rowid, line_type, ".$target_tables['fk_line']." as fk_line FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+        $sql_reorder .= " WHERE ".$target_tables['fk_parent']." = ".(int)$target_id;
+        $sql_reorder .= " AND document_type = '".$db->escape($target_type)."'";
+        $sql_reorder .= " ORDER BY line_order";
+
+        $res_reorder = $db->query($sql_reorder);
+
+        $final_order = 10;
+        $final_rang = 1;
+        $product_rang_updates = array();
+
+        while ($row = $db->fetch_object($res_reorder)) {
+            // Update line_order
+            $sql_upd = "UPDATE ".MAIN_DB_PREFIX."facture_lines_manager SET line_order = ".(int)$final_order;
+            $sql_upd .= " WHERE rowid = ".(int)$row->rowid;
+            $db->query($sql_upd);
+
+            // Sammle Rang für Produkte
+            if ($row->line_type === 'product' && $row->fk_line) {
+                $product_rang_updates[$row->fk_line] = $final_rang;
+                $final_rang++;
+            }
+
+            $final_order += 10;
+        }
+
+        subtotaltitle_debug_log('✅ line_order neu nummeriert');
+
+        // B) rang in Dolibarr-Tabelle aktualisieren
+        subtotaltitle_debug_log('🔄 Aktualisiere rang in Dolibarr-Tabelle ('.$target_tables['lines_table'].')...');
+
+        foreach ($product_rang_updates as $line_id => $new_rang) {
+            $sql_rang = "UPDATE ".MAIN_DB_PREFIX.$target_tables['lines_table'];
+            $sql_rang .= " SET rang = ".(int)$new_rang;
+            $sql_rang .= " WHERE rowid = ".(int)$line_id;
+            $db->query($sql_rang);
+            subtotaltitle_debug_log('  Line #'.$line_id.' → rang='.$new_rang);
+        }
+
+        subtotaltitle_debug_log('✅ rang in Dolibarr-Tabelle aktualisiert ('.count($product_rang_updates).' Zeilen)');
+
+        // Commit Transaktion
+        $db->commit();
+
+        subtotaltitle_debug_log('✅ Import komplett: '.$imported_sections.' Sections, '.$imported_textlines.' Textlines, '.$imported_subtotals.' Subtotals, '.$product_assignments.' zugeordnete Produkte, '.$new_products.' neue Produkte');
+
+        echo json_encode(array(
+            'success' => true,
+            'imported_sections' => $imported_sections,
+            'imported_textlines' => $imported_textlines,
+            'imported_subtotals' => $imported_subtotals,
+            'product_assignments' => $product_assignments,
+            'new_products' => $new_products,
+            'message' => sprintf('%d Sections, %d Textlines, %d Produkte zugeordnet, %d neue Produkte',
+                $imported_sections, $imported_textlines, $product_assignments, $new_products)
+        ));
+
+    } catch (Exception $e) {
+        $db->rollback();
+        subtotaltitle_debug_log('❌ Import fehlgeschlagen: '.$e->getMessage());
+        echo json_encode(array('success' => false, 'error' => $e->getMessage()));
+    }
+
+} else {
+    echo json_encode(array('success' => false, 'error' => 'Unknown action'));
+}
--- a/ajax/mass_delete.php
+++ b/ajax/mass_delete.php
@ -2,53 +2,66 @@
 define('NOTOKENRENEWAL', 1);
 require '../../../main.inc.php';
 require_once __DIR__.'/../lib/subtotaltitle.lib.php';
-require_once DOL_DOCUMENT_ROOT.'/compta/facture/class/facture.class.php';
+require_once __DIR__.'/../class/DocumentTypeHelper.class.php';

 $line_ids_json = GETPOST('line_ids', 'alpha');
-$facture_id = GETPOST('facture_id', 'int');
+$document_id = GETPOST('facture_id', 'int'); // Kompatibilitaet: facture_id wird auch fuer andere Typen verwendet
+$docType = GETPOST('document_type', 'alpha');

 $line_ids = json_decode($line_ids_json, true);

-if (!is_array($line_ids) || count($line_ids) == 0 || !$facture_id) {
+if (!is_array($line_ids) || count($line_ids) == 0 || !$document_id) {
    echo json_encode(['success' => false, 'error' => 'Missing parameters']);
    exit;
 }

-// Prüfe Rechnungsstatus
-$facture = new Facture($db);
-$facture->fetch($facture_id);
-
-if ($facture->statut != Facture::STATUS_DRAFT) {
-    echo json_encode(['success' => false, 'error' => 'Rechnung ist nicht im Entwurf']);
+// Hole die richtigen Tabellennamen fuer diesen Dokumenttyp
+$tables = DocumentTypeHelper::getTableNames($docType);
+if (!$tables) {
+    echo json_encode(['success' => false, 'error' => 'Invalid document type']);
    exit;
 }

-subtotaltitle_debug_log('🗑️ Massenlöschung: ' . count($line_ids) . ' Zeilen');
+// Pruefe Dokumentstatus
+$object = DocumentTypeHelper::loadDocument($docType, $document_id, $db);
+if (!$object) {
+    echo json_encode(['success' => false, 'error' => 'Dokument nicht gefunden']);
+    exit;
+}
+
+$isDraft = DocumentTypeHelper::isDraft($object, $docType);
+if (!$isDraft) {
+    echo json_encode(['success' => false, 'error' => 'Dokument ist nicht im Entwurf']);
+    exit;
+}
+
+subtotaltitle_debug_log('Massenloeschung: ' . count($line_ids) . ' Zeilen, docType=' . $docType);

 $db->begin();

 $deleted = 0;
 foreach ($line_ids as $line_id) {
    $line_id = (int)$line_id;
-    
-    // Aus facturedet löschen
-    $sql = "DELETE FROM ".MAIN_DB_PREFIX."facturedet WHERE rowid = ".$line_id;
+
+    // Aus Detail-Tabelle loeschen
+    $sql = "DELETE FROM ".MAIN_DB_PREFIX.$tables['lines_table']." WHERE rowid = ".$line_id;
    if ($db->query($sql)) {
        $deleted++;
-        subtotaltitle_debug_log('✅ Zeile gelöscht: ' . $line_id);
+        subtotaltitle_debug_log('Zeile geloescht: ' . $line_id);
    }
-    
-    // Aus Manager-Tabelle löschen
-    $sql_manager = "DELETE FROM ".MAIN_DB_PREFIX."facture_lines_manager WHERE fk_facturedet = ".$line_id;
+
+    // Aus Manager-Tabelle loeschen
+    $sql_manager = "DELETE FROM ".MAIN_DB_PREFIX."facture_lines_manager WHERE ".$tables['fk_line']." = ".$line_id;
    $db->query($sql_manager);
 }

 // Summen neu berechnen
-$facture->update_price(1);
+$object->update_price(1);

 // line_order neu durchnummerieren
 $sql = "SELECT rowid FROM ".MAIN_DB_PREFIX."facture_lines_manager";
-$sql .= " WHERE fk_facture = ".(int)$facture_id;
+$sql .= " WHERE ".$tables['fk_parent']." = ".(int)$document_id;
+$sql .= " AND document_type = '".$db->escape($docType)."'";
 $sql .= " ORDER BY line_order";
 $resql = $db->query($sql);

@ -60,21 +73,24 @@ while ($obj = $db->fetch_object($resql)) {
 }

 // rang synchronisieren
-$sql = "SELECT fk_facturedet FROM ".MAIN_DB_PREFIX."facture_lines_manager";
-$sql .= " WHERE fk_facture = ".(int)$facture_id;
-$sql .= " AND line_type = 'product'";
+$sql = "SELECT ".$tables['fk_line']." as detail_id FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+$sql .= " WHERE ".$tables['fk_parent']." = ".(int)$document_id;
+$sql .= " AND document_type = '".$db->escape($docType)."'";
+$sql .= " AND ".$tables['fk_line']." IS NOT NULL";
 $sql .= " ORDER BY line_order";
 $resql = $db->query($sql);

 $rang = 1;
 while ($obj = $db->fetch_object($resql)) {
-    $sql_upd = "UPDATE ".MAIN_DB_PREFIX."facturedet SET rang = ".$rang." WHERE rowid = ".(int)$obj->fk_facturedet;
-    $db->query($sql_upd);
-    $rang++;
+    if ($obj->detail_id) {
+        $sql_upd = "UPDATE ".MAIN_DB_PREFIX.$tables['lines_table']." SET rang = ".$rang." WHERE rowid = ".(int)$obj->detail_id;
+        $db->query($sql_upd);
+        $rang++;
+    }
 }

 $db->commit();

-subtotaltitle_debug_log('🗑️ Massenlöschung abgeschlossen: ' . $deleted . ' von ' . count($line_ids));
+subtotaltitle_debug_log('Massenloeschung abgeschlossen: ' . $deleted . ' von ' . count($line_ids));

-echo json_encode(['success' => true, 'deleted' => $deleted]);
+echo json_encode(['success' => true, 'deleted' => $deleted]);
--- a/ajax/move_section.php
+++ b/ajax/move_section.php
@ -1,19 +1,41 @@
 <?php
 define('NOTOKENRENEWAL', 1);
 require '../../../main.inc.php';
+require_once __DIR__.'/../class/DocumentTypeHelper.class.php';

 $section_id = GETPOST('section_id', 'int');
 $direction = GETPOST('direction', 'alpha');
+$docType = GETPOST('document_type', 'alpha');

 if (!$section_id || !$direction) {
    echo json_encode(array('success' => false, 'error' => 'Missing parameters'));
    exit;
 }

+// Wenn kein docType übergeben, versuche ihn aus der Section zu ermitteln
+if (!$docType) {
+    $sql = "SELECT document_type FROM ".MAIN_DB_PREFIX."facture_lines_manager WHERE rowid = ".(int)$section_id;
+    $res = $db->query($sql);
+    if ($res && $obj = $db->fetch_object($res)) {
+        $docType = $obj->document_type;
+    }
+}
+
+if (!$docType) {
+    $docType = 'invoice'; // Fallback
+}
+
+$tables = DocumentTypeHelper::getTableNames($docType);
+if (!$tables) {
+    echo json_encode(array('success' => false, 'error' => 'Invalid document type'));
+    exit;
+}
+
 // Hole Section-Info
-$sql = "SELECT fk_facture FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+$sql = "SELECT ".$tables['fk_parent']." as doc_id FROM ".MAIN_DB_PREFIX."facture_lines_manager";
 $sql .= " WHERE rowid = ".(int)$section_id;
 $sql .= " AND line_type = 'section'";
+$sql .= " AND document_type = '".$db->escape($docType)."'";
 $resql = $db->query($sql);

 if (!$resql || $db->num_rows($resql) == 0) {
@ -22,13 +44,14 @@ if (!$resql || $db->num_rows($resql) == 0) {
 }

 $section = $db->fetch_object($resql);
-$facture_id = $section->fk_facture;
+$doc_id = $section->doc_id;

 $db->begin();

 // 1. Hole alle Sections (sortiert)
 $sql = "SELECT rowid FROM ".MAIN_DB_PREFIX."facture_lines_manager";
-$sql .= " WHERE fk_facture = ".(int)$facture_id;
+$sql .= " WHERE ".$tables['fk_parent']." = ".(int)$doc_id;
+$sql .= " AND document_type = '".$db->escape($docType)."'";
 $sql .= " AND line_type = 'section'";
 $sql .= " ORDER BY line_order";
 $resql = $db->query($sql);
@ -42,18 +65,21 @@ while ($obj = $db->fetch_object($resql)) {
 $current_index = array_search($section_id, $sections);

 if ($current_index === false) {
+    $db->rollback();
    echo json_encode(array('success' => false, 'error' => 'Section not in list'));
    exit;
 }

 if ($direction == 'up') {
    if ($current_index == 0) {
+        $db->rollback();
        echo json_encode(array('success' => false, 'error' => 'Already at top'));
        exit;
    }
    $swap_index = $current_index - 1;
 } else {
    if ($current_index == count($sections) - 1) {
+        $db->rollback();
        echo json_encode(array('success' => false, 'error' => 'Already at bottom'));
        exit;
    }
@ -66,76 +92,104 @@ $sections[$current_index] = $sections[$swap_index];
 $sections[$swap_index] = $temp;

 // 3. Baue komplette neue Reihenfolge auf
+// Strategie: Freie Zeilen behalten ihre Position relativ zu Sections
 $new_order = 1;
 $updates = array();
+$processed = array();

-// Freie Produkte zuerst
+// Hole die aktuelle line_order der ersten Section (VOR dem Swap)
+$sql = "SELECT MIN(line_order) as min_section_order FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+$sql .= " WHERE ".$tables['fk_parent']." = ".(int)$doc_id;
+$sql .= " AND document_type = '".$db->escape($docType)."'";
+$sql .= " AND line_type = 'section'";
+$resql = $db->query($sql);
+$obj = $db->fetch_object($resql);
+$first_section_order = $obj ? $obj->min_section_order : 9999;
+
+// 1. FREIE ZEILEN VOR allen Sections (line_order < erste Section)
 $sql = "SELECT rowid FROM ".MAIN_DB_PREFIX."facture_lines_manager";
-$sql .= " WHERE fk_facture = ".(int)$facture_id;
-$sql .= " AND line_type = 'product'";
-$sql .= " AND parent_section IS NULL";
+$sql .= " WHERE ".$tables['fk_parent']." = ".(int)$doc_id;
+$sql .= " AND document_type = '".$db->escape($docType)."'";
+$sql .= " AND (parent_section IS NULL OR parent_section = 0)";
+$sql .= " AND line_type != 'section'";
+$sql .= " AND line_order < ".(int)$first_section_order;
 $sql .= " ORDER BY line_order";
 $resql = $db->query($sql);

 while ($obj = $db->fetch_object($resql)) {
    $updates[$obj->rowid] = $new_order;
+    $processed[$obj->rowid] = true;
+    dol_syslog('[SubtotalTitle] move_section: Freie Zeile VOR Sections #'.$obj->rowid.' → line_order='.$new_order, LOG_INFO);
    $new_order++;
 }

-// Freie Textzeilen
-$sql = "SELECT rowid FROM ".MAIN_DB_PREFIX."facture_lines_manager";
-$sql .= " WHERE fk_facture = ".(int)$facture_id;
-$sql .= " AND line_type = 'text'";
-$sql .= " AND parent_section IS NULL";
-$sql .= " ORDER BY line_order";
-$resql = $db->query($sql);
-
-while ($obj = $db->fetch_object($resql)) {
-    $updates[$obj->rowid] = $new_order;
-    $new_order++;
-}
-
-// Sections in neuer Reihenfolge
+// 2. SECTIONS in neuer Reihenfolge (nach dem Swap)
 foreach ($sections as $sec_id) {
    // Section-Header
    $updates[$sec_id] = $new_order;
+    $processed[$sec_id] = true;
+    dol_syslog('[SubtotalTitle] move_section: Section #'.$sec_id.' → line_order='.$new_order, LOG_INFO);
    $new_order++;
-    
+
    // Produkte dieser Section
    $sql = "SELECT rowid FROM ".MAIN_DB_PREFIX."facture_lines_manager";
-    $sql .= " WHERE fk_facture = ".(int)$facture_id;
+    $sql .= " WHERE ".$tables['fk_parent']." = ".(int)$doc_id;
+    $sql .= " AND document_type = '".$db->escape($docType)."'";
    $sql .= " AND line_type = 'product'";
    $sql .= " AND parent_section = ".(int)$sec_id;
    $sql .= " ORDER BY line_order";
    $resql = $db->query($sql);
-    
+
    while ($obj = $db->fetch_object($resql)) {
        $updates[$obj->rowid] = $new_order;
+        $processed[$obj->rowid] = true;
        $new_order++;
    }
-    
+
    // Textzeilen dieser Section
    $sql = "SELECT rowid FROM ".MAIN_DB_PREFIX."facture_lines_manager";
-    $sql .= " WHERE fk_facture = ".(int)$facture_id;
+    $sql .= " WHERE ".$tables['fk_parent']." = ".(int)$doc_id;
+    $sql .= " AND document_type = '".$db->escape($docType)."'";
    $sql .= " AND line_type = 'text'";
    $sql .= " AND parent_section = ".(int)$sec_id;
    $sql .= " ORDER BY line_order";
    $resql = $db->query($sql);
-    
+
    while ($obj = $db->fetch_object($resql)) {
        $updates[$obj->rowid] = $new_order;
+        $processed[$obj->rowid] = true;
        $new_order++;
    }
-    
-    // ========== SUBTOTAL DIESER SECTION ==========
+
+    // Subtotal dieser Section
    $sql = "SELECT rowid FROM ".MAIN_DB_PREFIX."facture_lines_manager";
-    $sql .= " WHERE fk_facture = ".(int)$facture_id;
+    $sql .= " WHERE ".$tables['fk_parent']." = ".(int)$doc_id;
+    $sql .= " AND document_type = '".$db->escape($docType)."'";
    $sql .= " AND line_type = 'subtotal'";
    $sql .= " AND parent_section = ".(int)$sec_id;
    $resql = $db->query($sql);
-    
+
    while ($obj = $db->fetch_object($resql)) {
        $updates[$obj->rowid] = $new_order;
+        $processed[$obj->rowid] = true;
+        $new_order++;
+    }
+}
+
+// 3. FREIE ZEILEN NACH allen Sections (die noch nicht processed wurden)
+$sql = "SELECT rowid FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+$sql .= " WHERE ".$tables['fk_parent']." = ".(int)$doc_id;
+$sql .= " AND document_type = '".$db->escape($docType)."'";
+$sql .= " AND (parent_section IS NULL OR parent_section = 0)";
+$sql .= " AND line_type != 'section'";
+$sql .= " ORDER BY line_order";
+$resql = $db->query($sql);
+
+while ($obj = $db->fetch_object($resql)) {
+    if (!isset($processed[$obj->rowid])) {
+        $updates[$obj->rowid] = $new_order;
+        $processed[$obj->rowid] = true;
+        dol_syslog('[SubtotalTitle] move_section: Freie Zeile NACH Sections #'.$obj->rowid.' → line_order='.$new_order, LOG_INFO);
        $new_order++;
    }
 }
@ -148,22 +202,31 @@ foreach ($updates as $rowid => $order) {
    $db->query($sql);
 }

-// 5. Sync rang
-$sql = "SELECT fk_facturedet FROM ".MAIN_DB_PREFIX."facture_lines_manager";
-$sql .= " WHERE fk_facture = ".(int)$facture_id;
-$sql .= " AND line_type = 'product'";
+// 5. Sync rang in Detail-Tabelle
+dol_syslog('[SubtotalTitle] move_section: Starte rang-Synchronisation für docType='.$docType.' doc_id='.$doc_id, LOG_INFO);
+
+$sql = "SELECT rowid, line_type, ".$tables['fk_line']." as detail_id FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+$sql .= " WHERE ".$tables['fk_parent']." = ".(int)$doc_id;
+$sql .= " AND document_type = '".$db->escape($docType)."'";
+$sql .= " AND ".$tables['fk_line']." IS NOT NULL";
 $sql .= " ORDER BY line_order";
 $resql = $db->query($sql);

 $rang = 1;
 while ($obj = $db->fetch_object($resql)) {
-    $sql_upd = "UPDATE ".MAIN_DB_PREFIX."facturedet";
-    $sql_upd .= " SET rang = ".$rang;
-    $sql_upd .= " WHERE rowid = ".(int)$obj->fk_facturedet;
-    $db->query($sql_upd);
-    $rang++;
+    $detail_id = $obj->detail_id;
+    if ($detail_id) {
+        $sql_upd = "UPDATE ".MAIN_DB_PREFIX.$tables['lines_table'];
+        $sql_upd .= " SET rang = ".$rang;
+        $sql_upd .= " WHERE rowid = ".(int)$detail_id;
+        $db->query($sql_upd);
+        dol_syslog('[SubtotalTitle] Sync rang: '.$obj->line_type.' manager#'.$obj->rowid.' detail#'.$detail_id.' → rang='.$rang, LOG_INFO);
+        $rang++;
+    }
 }

+dol_syslog('[SubtotalTitle] move_section: rang-Synchronisation abgeschlossen, '.$rang.' Zeilen synchronisiert', LOG_INFO);
+
 $db->commit();

-echo json_encode(array('success' => true));
+echo json_encode(array('success' => true));
--- a/ajax/remove_from_section.php
+++ b/ajax/remove_from_section.php
@ -2,24 +2,112 @@
 define('NOTOKENRENEWAL', 1);
 require '../../../main.inc.php';
 require_once __DIR__.'/../lib/subtotaltitle.lib.php';
+require_once __DIR__.'/../class/DocumentTypeHelper.class.php';

 $product_id = GETPOST('product_id', 'int');
+$docType = GETPOST('document_type', 'alpha');

-subtotaltitle_debug_log('🔓 remove_from_section: product=' . $product_id);
+subtotaltitle_debug_log('🔓 remove_from_section: product=' . $product_id . ', docType=' . $docType);

-if (!$product_id) {
-    echo json_encode(['success' => false, 'error' => 'Missing product_id']);
+if (!$product_id || !$docType) {
+    echo json_encode(['success' => false, 'error' => 'Missing parameters']);
    exit;
 }

+// Hole die richtigen Tabellennamen für diesen Dokumenttyp
+$tables = DocumentTypeHelper::getTableNames($docType);
+if (!$tables) {
+    echo json_encode(['success' => false, 'error' => 'Invalid document type']);
+    exit;
+}
+
+$db->begin();
+
+// 1. Hole parent_section und document_id BEVOR wir entfernen
+$sql = "SELECT parent_section, ".$tables['fk_parent']." as doc_id FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+$sql .= " WHERE ".$tables['fk_line']." = ".(int)$product_id;
+$sql .= " AND document_type = '".$db->escape($docType)."'";
+$resql = $db->query($sql);
+
+if (!$resql || $db->num_rows($resql) == 0) {
+    $db->rollback();
+    echo json_encode(['success' => false, 'error' => 'Product not found in manager table']);
+    exit;
+}
+
+$obj = $db->fetch_object($resql);
+$old_section_id = $obj->parent_section;
+$document_id = $obj->doc_id;
+
+// 2. Entferne aus Section
 $sql = "UPDATE ".MAIN_DB_PREFIX."facture_lines_manager";
 $sql .= " SET parent_section = NULL";
-$sql .= " WHERE fk_facturedet = ".(int)$product_id;
+$sql .= " WHERE ".$tables['fk_line']." = ".(int)$product_id;
+$sql .= " AND document_type = '".$db->escape($docType)."'";
+$db->query($sql);

-$result = $db->query($sql);
+subtotaltitle_debug_log('✅ Produkt #' . $product_id . ' aus Section #'.$old_section_id.' entfernt');

-if ($result) {
-    echo json_encode(['success' => true]);
-} else {
-    echo json_encode(['success' => false, 'error' => $db->lasterror()]);
-}
+// 3. Wenn Product aus einer Section entfernt wurde, Subtotal neu berechnen
+if ($old_section_id > 0) {
+    // Prüfe ob Section Subtotal anzeigen soll
+    $sql = "SELECT show_subtotal, title FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+    $sql .= " WHERE rowid = ".(int)$old_section_id;
+    $sql .= " AND line_type = 'section'";
+    $resql = $db->query($sql);
+
+    if ($resql && $obj = $db->fetch_object($resql)) {
+        if ($obj->show_subtotal) {
+            // Berechne neue Summe
+            $sql_sum = "SELECT SUM(d.total_ht) as total";
+            $sql_sum .= " FROM ".MAIN_DB_PREFIX."facture_lines_manager m";
+            $sql_sum .= " INNER JOIN ".MAIN_DB_PREFIX.$tables['lines_table']." d ON d.rowid = m.".$tables['fk_line'];
+            $sql_sum .= " WHERE m.parent_section = ".(int)$old_section_id;
+            $sql_sum .= " AND m.document_type = '".$db->escape($docType)."'";
+            $sql_sum .= " AND m.line_type = 'product'";
+            $res_sum = $db->query($sql_sum);
+            $obj_sum = $db->fetch_object($res_sum);
+            $new_total = $obj_sum->total ? (float)$obj_sum->total : 0;
+
+            // Update Subtotal in Detail-Tabelle
+            $sql_upd = "UPDATE ".MAIN_DB_PREFIX.$tables['lines_table']." d";
+            $sql_upd .= " INNER JOIN ".MAIN_DB_PREFIX."facture_lines_manager m ON m.".$tables['fk_line']." = d.rowid";
+            $sql_upd .= " SET d.subprice = ".(float)$new_total.", d.total_ht = ".(float)$new_total.", d.total_ttc = ".(float)$new_total;
+            $sql_upd .= " WHERE m.parent_section = ".(int)$old_section_id;
+            $sql_upd .= " AND m.document_type = '".$db->escape($docType)."'";
+            $sql_upd .= " AND m.line_type = 'subtotal'";
+            $db->query($sql_upd);
+
+            subtotaltitle_debug_log('  Subtotal für Section #'.$old_section_id.' aktualisiert: '.$new_total);
+        }
+    }
+}
+
+// 4. Sync rang in Detail-Tabelle
+subtotaltitle_debug_log('  Starte rang-Synchronisation für docType='.$docType.' doc_id='.$document_id);
+
+$sql = "SELECT rowid, line_type, ".$tables['fk_line']." as detail_id FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+$sql .= " WHERE ".$tables['fk_parent']." = ".(int)$document_id;
+$sql .= " AND document_type = '".$db->escape($docType)."'";
+$sql .= " AND ".$tables['fk_line']." IS NOT NULL";
+$sql .= " ORDER BY line_order";
+$resql = $db->query($sql);
+
+$rang = 1;
+while ($obj = $db->fetch_object($resql)) {
+    $detail_id = $obj->detail_id;
+    if ($detail_id) {
+        $sql_upd = "UPDATE ".MAIN_DB_PREFIX.$tables['lines_table'];
+        $sql_upd .= " SET rang = ".$rang;
+        $sql_upd .= " WHERE rowid = ".(int)$detail_id;
+        $db->query($sql_upd);
+        subtotaltitle_debug_log('  Sync rang: '.$obj->line_type.' manager#'.$obj->rowid.' detail#'.$detail_id.' → rang='.$rang);
+        $rang++;
+    }
+}
+
+subtotaltitle_debug_log('  rang-Synchronisation abgeschlossen, '.$rang.' Zeilen synchronisiert');
+
+$db->commit();
+
+echo json_encode(['success' => true]);
--- a/ajax/reorder_all.php
+++ b/ajax/reorder_all.php
@ -2,17 +2,26 @@
 define('NOTOKENRENEWAL', 1);
 require '../../../main.inc.php';
 require_once __DIR__.'/../lib/subtotaltitle.lib.php';
+require_once __DIR__.'/../class/DocumentTypeHelper.class.php';

 $facture_id = GETPOST('facture_id', 'int');
 $new_order_json = GETPOST('new_order', 'none');
+$docType = GETPOST('document_type', 'alpha');

 subtotaltitle_debug_log('🔄 reorder_all: facture=' . $facture_id);

-if (!$facture_id || !$new_order_json) {
+if (!$facture_id || !$new_order_json || !$docType) {
    echo json_encode(['success' => false, 'error' => 'Missing parameters']);
    exit;
 }

+// Hole die richtigen Tabellennamen für diesen Dokumenttyp
+$tables = DocumentTypeHelper::getTableNames($docType);
+if (!$tables) {
+    echo json_encode(['success' => false, 'error' => 'Invalid document type']);
+    exit;
+}
+
 $new_order = json_decode($new_order_json, true);

 if (!$new_order) {
@ -35,7 +44,7 @@ foreach ($new_order as $item) {
        $sql = "UPDATE ".MAIN_DB_PREFIX."facture_lines_manager";
        $sql .= " SET line_order = ".(int)$item['order'];
        $sql .= ", parent_section = ".($item['parent_section'] ? (int)$item['parent_section'] : "NULL");
-        $sql .= " WHERE fk_facturedet = ".(int)$item['id'];
+        $sql .= " WHERE ".$tables['fk_line']." = ".(int)$item['id'];
        $db->query($sql);
        subtotaltitle_debug_log('  Produkt #'.$item['id'].' → order='.$item['order'].', section='.($item['parent_section'] ?: 'FREI'));
        
@ -53,29 +62,70 @@ foreach ($new_order as $item) {
 // ========== SUBTOTALS NEU POSITIONIEREN ==========
 subtotaltitle_debug_log('🔢 Repositioniere Subtotals...');

+// Hole alle Subtotals für dieses Dokument
 $sql = "SELECT rowid, parent_section FROM ".MAIN_DB_PREFIX."facture_lines_manager
-        WHERE fk_facture = ".(int)$facture_id."
+        WHERE ".$tables['fk_parent']." = ".(int)$facture_id."
+        AND document_type = '".$db->escape($docType)."'
        AND line_type = 'subtotal'";
 $resql = $db->query($sql);

+$subtotals_to_update = array();
 while ($subtotal = $db->fetch_object($resql)) {
+    $subtotals_to_update[] = $subtotal;
+}
+
+foreach ($subtotals_to_update as $subtotal) {
    // Finde höchste line_order der Produkte dieser Section
    $sql_max = "SELECT MAX(line_order) as max_order
                FROM ".MAIN_DB_PREFIX."facture_lines_manager
                WHERE parent_section = ".(int)$subtotal->parent_section."
-                AND line_type = 'product'";
+                AND line_type = 'product'
+                AND document_type = '".$db->escape($docType)."'";
    $res_max = $db->query($sql_max);
    $obj_max = $db->fetch_object($res_max);
-    
+
    if ($obj_max && $obj_max->max_order) {
-        // Subtotal bekommt hohe Nummer (wird gleich normalisiert)
-        $temp_order = (int)$obj_max->max_order * 100 + 50;
-        
+        // Subtotal kommt direkt nach dem letzten Produkt: max_order + 0.5
+        $temp_order = (float)$obj_max->max_order + 0.5;
+
        $sql_upd = "UPDATE ".MAIN_DB_PREFIX."facture_lines_manager
                    SET line_order = ".$temp_order."
                    WHERE rowid = ".(int)$subtotal->rowid;
        $db->query($sql_upd);
-        subtotaltitle_debug_log('  Subtotal #'.$subtotal->rowid.' → temp_order='.$temp_order.' (nach Section '.$subtotal->parent_section.')');
+        subtotaltitle_debug_log('  Subtotal #'.$subtotal->rowid.' (Section '.$subtotal->parent_section.') → temp_order='.$temp_order);
+    } else {
+        subtotaltitle_debug_log('  ⚠️ Subtotal #'.$subtotal->rowid.' hat keine Produkte in Section '.$subtotal->parent_section);
+    }
+}
+
+// ========== SECTIONS VOR IHREN PRODUKTEN SICHERSTELLEN ==========
+subtotaltitle_debug_log('🔧 Stelle sicher dass Sections vor ihren Produkten stehen...');
+
+// Für jede Section: Wenn ein Produkt dieser Section VOR der Section steht,
+// verschiebe die Section vor das erste Produkt
+$sql_sections = "SELECT rowid, line_order FROM ".MAIN_DB_PREFIX."facture_lines_manager
+        WHERE ".$tables['fk_parent']." = ".(int)$facture_id."
+        AND document_type = '".$db->escape($docType)."'
+        AND line_type = 'section'";
+$res_sections = $db->query($sql_sections);
+
+while ($section = $db->fetch_object($res_sections)) {
+    // Finde das Produkt dieser Section mit der kleinsten line_order
+    $sql_first_prod = "SELECT MIN(line_order) as min_order FROM ".MAIN_DB_PREFIX."facture_lines_manager
+            WHERE parent_section = ".(int)$section->rowid."
+            AND document_type = '".$db->escape($docType)."'
+            AND line_type = 'product'";
+    $res_first = $db->query($sql_first_prod);
+    $first_prod = $db->fetch_object($res_first);
+
+    if ($first_prod && $first_prod->min_order && $first_prod->min_order < $section->line_order) {
+        // Section steht NACH ihrem ersten Produkt - verschiebe sie davor
+        $new_section_order = (float)$first_prod->min_order - 0.5;
+        $sql_move = "UPDATE ".MAIN_DB_PREFIX."facture_lines_manager
+                    SET line_order = ".$new_section_order."
+                    WHERE rowid = ".(int)$section->rowid;
+        $db->query($sql_move);
+        subtotaltitle_debug_log('  Section #'.$section->rowid.' verschoben: '.$section->line_order.' → '.$new_section_order.' (vor Produkt mit order='.$first_prod->min_order.')');
    }
 }

@ -83,7 +133,8 @@ while ($subtotal = $db->fetch_object($resql)) {
 subtotaltitle_debug_log('🔢 Normalisiere line_order...');

 $sql = "SELECT rowid FROM ".MAIN_DB_PREFIX."facture_lines_manager
-        WHERE fk_facture = ".(int)$facture_id."
+        WHERE ".$tables['fk_parent']." = ".(int)$facture_id."
+        AND document_type = '".$db->escape($docType)."'
        ORDER BY line_order";
 $resql = $db->query($sql);

@ -96,19 +147,23 @@ while ($obj = $db->fetch_object($resql)) {
    $new_order_num++;
 }

-// ========== SYNC FACTUREDET.RANG ==========
-$sql = "SELECT fk_facturedet FROM ".MAIN_DB_PREFIX."facture_lines_manager";
-$sql .= " WHERE fk_facture = ".(int)$facture_id;
-$sql .= " AND line_type = 'product'";
+// ========== SYNC RANG IN DETAIL-TABELLE ==========
+// Synchronisiere ALLE Zeilen die in der Detail-Tabelle sind (nicht nur Produkte!)
+$sql = "SELECT ".$tables['fk_line'].", line_type FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+$sql .= " WHERE ".$tables['fk_parent']." = ".(int)$facture_id;
+$sql .= " AND document_type = '".$db->escape($docType)."'";
+$sql .= " AND ".$tables['fk_line']." IS NOT NULL";  // Alle die in Detail-Tabelle sind
 $sql .= " ORDER BY line_order";
 $resql = $db->query($sql);

 $rang = 1;
 while ($obj = $db->fetch_object($resql)) {
-    $sql_upd = "UPDATE ".MAIN_DB_PREFIX."facturedet";
+    $fk_line_value = $obj->{$tables['fk_line']};
+    $sql_upd = "UPDATE ".MAIN_DB_PREFIX.$tables['lines_table'];
    $sql_upd .= " SET rang = ".$rang;
-    $sql_upd .= " WHERE rowid = ".(int)$obj->fk_facturedet;
+    $sql_upd .= " WHERE rowid = ".(int)$fk_line_value;
    $db->query($sql_upd);
+    subtotaltitle_debug_log('  Sync rang: '.$obj->line_type.' #'.$fk_line_value.' → rang='.$rang);
    $rang++;
 }

--- a/ajax/repair_missing_subtotals.php
+++ b/ajax/repair_missing_subtotals.php
@ -0,0 +1,73 @@
+<?php
+/**
+ * Repariert fehlende Subtotal-Zeilen für existierende Sections
+ */
+
+define('NOTOKENRENEWAL', 1);
+require '../../../main.inc.php';
+require_once __DIR__.'/../lib/subtotaltitle.lib.php';
+require_once __DIR__.'/../class/DocumentTypeHelper.class.php';
+
+$facture_id = GETPOST('facture_id', 'int');
+$docType = GETPOST('document_type', 'alpha');
+
+if (!$facture_id || !$docType) {
+    echo json_encode(['success' => false, 'error' => 'Missing parameters']);
+    exit;
+}
+
+$tables = DocumentTypeHelper::getTableNames($docType);
+if (!$tables) {
+    echo json_encode(['success' => false, 'error' => 'Invalid document type']);
+    exit;
+}
+
+$repaired = 0;
+
+// Finde alle Sections, die keine Subtotal-Zeile haben
+$sql = "SELECT s.rowid, s.title";
+$sql .= " FROM ".MAIN_DB_PREFIX."facture_lines_manager s";
+$sql .= " WHERE s.".$tables['fk_parent']." = ".(int)$facture_id;
+$sql .= " AND s.document_type = '".$db->escape($docType)."'";
+$sql .= " AND s.line_type = 'section'";
+$sql .= " AND NOT EXISTS (";
+$sql .= "   SELECT 1 FROM ".MAIN_DB_PREFIX."facture_lines_manager sub";
+$sql .= "   WHERE sub.parent_section = s.rowid";
+$sql .= "   AND sub.line_type = 'subtotal'";
+$sql .= "   AND sub.document_type = '".$db->escape($docType)."'";
+$sql .= " )";
+
+$resql = $db->query($sql);
+
+while ($section = $db->fetch_object($resql)) {
+    subtotaltitle_debug_log('🔧 Repariere Section #'.$section->rowid.' ('.$section->title.') - erstelle Subtotal');
+
+    // Hole nächste line_order
+    $sql_max = "SELECT MAX(line_order) as max_order FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+    $sql_max .= " WHERE ".$tables['fk_parent']." = ".(int)$facture_id;
+    $sql_max .= " AND document_type = '".$db->escape($docType)."'";
+    $res_max = $db->query($sql_max);
+    $obj_max = $db->fetch_object($res_max);
+    $next_order = ($obj_max && $obj_max->max_order) ? $obj_max->max_order + 1 : 9999;
+
+    $fk_facture = ($docType === 'invoice') ? (int)$facture_id : 'NULL';
+    $fk_propal = ($docType === 'propal') ? (int)$facture_id : 'NULL';
+    $fk_commande = ($docType === 'order') ? (int)$facture_id : 'NULL';
+
+    $sql_ins = "INSERT INTO ".MAIN_DB_PREFIX."facture_lines_manager";
+    $sql_ins .= " (fk_facture, fk_propal, fk_commande, document_type, line_type, title, parent_section, line_order, date_creation)";
+    $sql_ins .= " VALUES (".$fk_facture.", ".$fk_propal.", ".$fk_commande.", '".$db->escape($docType)."', 'subtotal', 'Zwischensumme', ".(int)$section->rowid.", ".$next_order.", NOW())";
+
+    if ($db->query($sql_ins)) {
+        $repaired++;
+        subtotaltitle_debug_log('✅ Subtotal-Zeile erstellt für Section #'.$section->rowid);
+    } else {
+        subtotaltitle_debug_log('❌ Fehler beim Erstellen der Subtotal-Zeile für Section #'.$section->rowid.': '.$db->lasterror());
+    }
+}
+
+echo json_encode([
+    'success' => true,
+    'repaired' => $repaired,
+    'message' => $repaired.' Subtotal-Zeilen erstellt'
+]);
--- a/ajax/sync_to_facturedet.php
+++ b/ajax/sync_to_facturedet.php
@ -13,6 +13,7 @@ if (!$res) die("Include of main fails");

 require_once DOL_DOCUMENT_ROOT.'/compta/facture/class/facture.class.php';
 dol_include_once('/subtotaltitle/lib/subtotaltitle.lib.php');
+require_once __DIR__.'/../class/DocumentTypeHelper.class.php';

 header('Content-Type: application/json');

@ -20,14 +21,22 @@ $action = GETPOST('action', 'alpha');
 $line_id = GETPOST('line_id', 'int');
 $line_type = GETPOST('line_type', 'alpha');
 $facture_id = GETPOST('facture_id', 'int');
+$docType = GETPOST('document_type', 'alpha');

-subtotaltitle_debug_log('🔄 sync_to_facturedet: action='.$action.', line_id='.$line_id.', type='.$line_type);
+subtotaltitle_debug_log('🔄 sync_to_facturedet: action='.$action.', line_id='.$line_id.', type='.$line_type.', docType='.$docType);

-if (!$line_id || !$action) {
+if (!$line_id || !$action || !$docType) {
    echo json_encode(array('success' => false, 'error' => 'Missing parameters'));
    exit;
 }

+// Hole die richtigen Tabellennamen für diesen Dokumenttyp
+$tables = DocumentTypeHelper::getTableNames($docType);
+if (!$tables) {
+    echo json_encode(array('success' => false, 'error' => 'Invalid document type'));
+    exit;
+}
+
 // Special codes für unsere Zeilentypen
 $special_codes = array(
    'section' => 100,
@ -44,22 +53,55 @@ if ($action == 'add') {
    $sql .= " LEFT JOIN ".MAIN_DB_PREFIX."facture_lines_manager s ON s.rowid = m.parent_section";
    $sql .= " WHERE m.rowid = ".(int)$line_id;
    $resql = $db->query($sql);
-    
+
    if (!$resql || $db->num_rows($resql) == 0) {
        echo json_encode(array('success' => false, 'error' => 'Line not found'));
        exit;
    }
-    
+
    $line = $db->fetch_object($resql);
-    $facture_id = $line->fk_facture;
+    $document_id = $line->{$tables['fk_parent']};
    $line_type = $line->line_type;
-    
-    // Prüfe ob schon in facturedet (für nicht-Produkte)
-    if ($line->fk_facturedet > 0 && $line_type != 'product') {
-        echo json_encode(array('success' => false, 'error' => 'Already in facturedet'));
+    $fk_line_field = $tables['fk_line'];
+
+    // Prüfe ob schon in detail-Tabelle (für nicht-Produkte)
+    if ($line->$fk_line_field > 0 && $line_type != 'product') {
+        echo json_encode(array('success' => false, 'error' => 'Already in detail table'));
        exit;
    }
-    
+
+    // AUTOMATISCHE REPARATUR: Wenn Section keine Subtotal-Zeile hat, erstelle sie
+    if ($line_type == 'section') {
+        $sql_check = "SELECT rowid FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+        $sql_check .= " WHERE parent_section = ".(int)$line_id;
+        $sql_check .= " AND line_type = 'subtotal'";
+        $sql_check .= " AND document_type = '".$db->escape($docType)."'";
+        $res_check = $db->query($sql_check);
+
+        if ($db->num_rows($res_check) == 0) {
+            // Keine Subtotal-Zeile vorhanden - automatisch erstellen
+            subtotaltitle_debug_log('⚠️ Section #'.$line_id.' hat keine Subtotal-Zeile - erstelle automatisch');
+
+            $sql_max = "SELECT MAX(line_order) as max_order FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+            $sql_max .= " WHERE ".$tables['fk_parent']." = ".(int)$document_id;
+            $sql_max .= " AND document_type = '".$db->escape($docType)."'";
+            $res_max = $db->query($sql_max);
+            $obj_max = $db->fetch_object($res_max);
+            $next_order = ($obj_max && $obj_max->max_order) ? $obj_max->max_order + 1 : 9999;
+
+            $fk_facture = ($docType === 'invoice') ? (int)$document_id : 'NULL';
+            $fk_propal = ($docType === 'propal') ? (int)$document_id : 'NULL';
+            $fk_commande = ($docType === 'order') ? (int)$document_id : 'NULL';
+
+            $sql_subtotal = "INSERT INTO ".MAIN_DB_PREFIX."facture_lines_manager";
+            $sql_subtotal .= " (fk_facture, fk_propal, fk_commande, document_type, line_type, title, parent_section, line_order, date_creation)";
+            $sql_subtotal .= " VALUES (".$fk_facture.", ".$fk_propal.", ".$fk_commande.", '".$db->escape($docType)."', 'subtotal', 'Zwischensumme', ".(int)$line_id.", ".$next_order.", NOW())";
+            $db->query($sql_subtotal);
+
+            subtotaltitle_debug_log('✅ Subtotal-Zeile automatisch erstellt für Section #'.$line_id);
+        }
+    }
+
    // Bestimme special_code
    $special_code = isset($special_codes[$line_type]) ? $special_codes[$line_type] : 0;
    
@ -83,43 +125,51 @@ if ($action == 'add') {
            // Berechne Summe der Section
            $sql_sum = "SELECT SUM(d.total_ht) as total";
            $sql_sum .= " FROM ".MAIN_DB_PREFIX."facture_lines_manager m";
-            $sql_sum .= " INNER JOIN ".MAIN_DB_PREFIX."facturedet d ON d.rowid = m.fk_facturedet";
+            $sql_sum .= " INNER JOIN ".MAIN_DB_PREFIX.$tables['lines_table']." d ON d.rowid = m.".$tables['fk_line'];
            $sql_sum .= " WHERE m.parent_section = ".(int)$line->parent_section;
+            $sql_sum .= " AND m.document_type = '".$db->escape($docType)."'";
            $sql_sum .= " AND m.line_type = 'product'";
            $res_sum = $db->query($sql_sum);
            $obj_sum = $db->fetch_object($res_sum);
            $total_ht = $obj_sum->total ? $obj_sum->total : 0;
-            
+
            $description = 'Zwischensumme: '.$line->section_title;
            $qty = 1;
            break;
    }
    
-    // Bestimme rang (Position)
+    // Bestimme rang (Position) - UNTERSCHIEDLICH für Sections vs andere Zeilen
+    $new_rang = 1;
+
+    // EINHEITLICHE BERECHNUNG für ALLE Zeilentypen basierend auf line_order
+    // Finde den höchsten rang aller Zeilen, die VOR dieser Zeile (nach line_order) liegen
    $sql_rang = "SELECT MAX(d.rang) as max_rang";
    $sql_rang .= " FROM ".MAIN_DB_PREFIX."facture_lines_manager m";
-    $sql_rang .= " INNER JOIN ".MAIN_DB_PREFIX."facturedet d ON d.rowid = m.fk_facturedet";
-    $sql_rang .= " WHERE m.fk_facture = ".(int)$facture_id;
+    $sql_rang .= " INNER JOIN ".MAIN_DB_PREFIX.$tables['lines_table']." d ON d.rowid = m.".$tables['fk_line'];
+    $sql_rang .= " WHERE m.".$tables['fk_parent']." = ".(int)$document_id;
+    $sql_rang .= " AND m.document_type = '".$db->escape($docType)."'";
    $sql_rang .= " AND m.line_order < ".(int)$line->line_order;
    $res_rang = $db->query($sql_rang);
    $obj_rang = $db->fetch_object($res_rang);
    $new_rang = ($obj_rang && $obj_rang->max_rang) ? $obj_rang->max_rang + 1 : 1;
-    
+
+    subtotaltitle_debug_log('📝 Berechne rang: line_type='.$line_type.', new_rang='.$new_rang);
+
    // Verschiebe alle nachfolgenden Zeilen
-    $sql_shift = "UPDATE ".MAIN_DB_PREFIX."facturedet";
+    $sql_shift = "UPDATE ".MAIN_DB_PREFIX.$tables['lines_table'];
    $sql_shift .= " SET rang = rang + 1";
-    $sql_shift .= " WHERE fk_facture = ".(int)$facture_id;
+    $sql_shift .= " WHERE ".$tables['fk_parent']." = ".(int)$document_id;
    $sql_shift .= " AND rang >= ".(int)$new_rang;
    $db->query($sql_shift);
    
-    // Füge neue Zeile in facturedet ein
+    // Füge neue Zeile in Detail-Tabelle ein
    subtotaltitle_debug_log('📝 INSERT: line_type='.$line_type.', special_code='.$special_code);

-    $sql_ins = "INSERT INTO ".MAIN_DB_PREFIX."facturedet";
-    $sql_ins .= " (fk_facture, description, qty, subprice, total_ht, total_tva, total_ttc,";
+    $sql_ins = "INSERT INTO ".MAIN_DB_PREFIX.$tables['lines_table'];
+    $sql_ins .= " (".$tables['fk_parent'].", description, qty, subprice, total_ht, total_tva, total_ttc,";
    $sql_ins .= " tva_tx, product_type, special_code, rang, info_bits)";
    $sql_ins .= " VALUES (";
-    $sql_ins .= (int)$facture_id.", ";
+    $sql_ins .= (int)$document_id.", ";
    $sql_ins .= "'".$db->escape($description)."', ";
    $sql_ins .= (float)$qty.", ";
    $sql_ins .= ($line_type == 'subtotal') ? (float)$total_ht.", " : "0, ";
@ -133,134 +183,209 @@ if ($action == 'add') {
    $sql_ins .= "0)";

    subtotaltitle_debug_log('📝 SQL: '.$sql_ins);
-    
+
    if (!$db->query($sql_ins)) {
        echo json_encode(array('success' => false, 'error' => $db->lasterror()));
        exit;
    }
-    
-    $new_facturedet_id = $db->last_insert_id(MAIN_DB_PREFIX."facturedet");
+
+    $new_detail_id = $db->last_insert_id(MAIN_DB_PREFIX.$tables['lines_table']);
    
    // Update unsere Manager-Tabelle
    $sql_upd = "UPDATE ".MAIN_DB_PREFIX."facture_lines_manager";
-    $sql_upd .= " SET fk_facturedet = ".(int)$new_facturedet_id;
+    $sql_upd .= " SET ".$tables['fk_line']." = ".(int)$new_detail_id;
    $sql_upd .= ", in_facturedet = 1";
    $sql_upd .= " WHERE rowid = ".(int)$line_id;
    $db->query($sql_upd);
-    
-    subtotaltitle_debug_log('✅ Zeile #'.$line_id.' zu facturedet hinzugefügt als #'.$new_facturedet_id);
-    
+
+    subtotaltitle_debug_log('✅ Zeile #'.$line_id.' zu '.$tables['lines_table'].' hinzugefügt als #'.$new_detail_id);
+
    echo json_encode(array(
-        'success' => true, 
-        'facturedet_id' => $new_facturedet_id,
+        'success' => true,
+        'detail_id' => $new_detail_id,
        'rang' => $new_rang
    ));
    
 } elseif ($action == 'remove') {
-    // ========== AUS RECHNUNG ENTFERNEN ==========
-    
+    // ========== AUS DETAIL-TABELLE ENTFERNEN ==========
+
    // Hole Daten
-    $sql = "SELECT fk_facturedet, fk_facture, line_type FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+    $sql = "SELECT ".$tables['fk_line']." as detail_id, ".$tables['fk_parent']." as parent_id, line_type FROM ".MAIN_DB_PREFIX."facture_lines_manager";
    $sql .= " WHERE rowid = ".(int)$line_id;
    $resql = $db->query($sql);
-    
+
    if (!$resql || $db->num_rows($resql) == 0) {
        echo json_encode(array('success' => false, 'error' => 'Line not found'));
        exit;
    }
-    
+
    $line = $db->fetch_object($resql);
-    
+
    // Produkte dürfen nicht entfernt werden
    if ($line->line_type == 'product') {
        echo json_encode(array('success' => false, 'error' => 'Cannot remove products'));
        exit;
    }
-    
-    if (!$line->fk_facturedet) {
-        echo json_encode(array('success' => false, 'error' => 'Not in facturedet'));
+
+    if (!$line->detail_id) {
+        echo json_encode(array('success' => false, 'error' => 'Not in detail table'));
        exit;
    }
-    
+
    // Hole rang bevor wir löschen
-    $sql_rang = "SELECT rang FROM ".MAIN_DB_PREFIX."facturedet WHERE rowid = ".(int)$line->fk_facturedet;
+    $sql_rang = "SELECT rang FROM ".MAIN_DB_PREFIX.$tables['lines_table']." WHERE rowid = ".(int)$line->detail_id;
    $res_rang = $db->query($sql_rang);
    $obj_rang = $db->fetch_object($res_rang);
    $old_rang = $obj_rang ? $obj_rang->rang : 0;
-    
-    // Lösche aus facturedet
-    $sql_del = "DELETE FROM ".MAIN_DB_PREFIX."facturedet";
-    $sql_del .= " WHERE rowid = ".(int)$line->fk_facturedet;
-    
+
+    // Lösche aus Detail-Tabelle
+    $sql_del = "DELETE FROM ".MAIN_DB_PREFIX.$tables['lines_table'];
+    $sql_del .= " WHERE rowid = ".(int)$line->detail_id;
+
    if (!$db->query($sql_del)) {
        echo json_encode(array('success' => false, 'error' => $db->lasterror()));
        exit;
    }
-    
+
    // Schließe Lücke in rang
    if ($old_rang > 0) {
-        $sql_shift = "UPDATE ".MAIN_DB_PREFIX."facturedet";
+        $sql_shift = "UPDATE ".MAIN_DB_PREFIX.$tables['lines_table'];
        $sql_shift .= " SET rang = rang - 1";
-        $sql_shift .= " WHERE fk_facture = ".(int)$line->fk_facture;
+        $sql_shift .= " WHERE ".$tables['fk_parent']." = ".(int)$line->parent_id;
        $sql_shift .= " AND rang > ".(int)$old_rang;
        $db->query($sql_shift);
    }
-    
+
    // Update unsere Manager-Tabelle
    $sql_upd = "UPDATE ".MAIN_DB_PREFIX."facture_lines_manager";
-    $sql_upd .= " SET fk_facturedet = NULL";
+    $sql_upd .= " SET ".$tables['fk_line']." = NULL";
    $sql_upd .= ", in_facturedet = 0";
    $sql_upd .= " WHERE rowid = ".(int)$line_id;
    $db->query($sql_upd);
-    
-    subtotaltitle_debug_log('✅ Zeile #'.$line_id.' aus facturedet entfernt');
-    
+
+    subtotaltitle_debug_log('✅ Zeile #'.$line_id.' aus '.$tables['lines_table'].' entfernt');
+
    echo json_encode(array('success' => true));
    
 } elseif ($action == 'update_subtotal') {
    // ========== SUBTOTAL-BETRAG AKTUALISIEREN ==========
-    
-    $sql = "SELECT m.fk_facturedet, m.parent_section, s.title as section_title";
+
+    $sql = "SELECT m.".$tables['fk_line']." as detail_id, m.parent_section, s.title as section_title";
    $sql .= " FROM ".MAIN_DB_PREFIX."facture_lines_manager m";
    $sql .= " LEFT JOIN ".MAIN_DB_PREFIX."facture_lines_manager s ON s.rowid = m.parent_section";
    $sql .= " WHERE m.rowid = ".(int)$line_id;
    $sql .= " AND m.line_type = 'subtotal'";
    $resql = $db->query($sql);
-    
+
    if (!$resql || $db->num_rows($resql) == 0) {
        echo json_encode(array('success' => false, 'error' => 'Subtotal not found'));
        exit;
    }
-    
+
    $line = $db->fetch_object($resql);
-    
-    if (!$line->fk_facturedet) {
-        echo json_encode(array('success' => false, 'error' => 'Not in facturedet'));
+
+    if (!$line->detail_id) {
+        echo json_encode(array('success' => false, 'error' => 'Not in detail table'));
        exit;
    }
-    
+
    // Berechne neue Summe
    $sql_sum = "SELECT SUM(d.total_ht) as total";
    $sql_sum .= " FROM ".MAIN_DB_PREFIX."facture_lines_manager m";
-    $sql_sum .= " INNER JOIN ".MAIN_DB_PREFIX."facturedet d ON d.rowid = m.fk_facturedet";
+    $sql_sum .= " INNER JOIN ".MAIN_DB_PREFIX.$tables['lines_table']." d ON d.rowid = m.".$tables['fk_line'];
    $sql_sum .= " WHERE m.parent_section = ".(int)$line->parent_section;
+    $sql_sum .= " AND m.document_type = '".$db->escape($docType)."'";
    $sql_sum .= " AND m.line_type = 'product'";
    $res_sum = $db->query($sql_sum);
    $obj_sum = $db->fetch_object($res_sum);
    $total_ht = $obj_sum->total ? $obj_sum->total : 0;
-    
-    // Update facturedet
-    $sql_upd = "UPDATE ".MAIN_DB_PREFIX."facturedet";
+
+    // Update Detail-Tabelle
+    $sql_upd = "UPDATE ".MAIN_DB_PREFIX.$tables['lines_table'];
    $sql_upd .= " SET subprice = ".(float)$total_ht;
    $sql_upd .= ", total_ht = ".(float)$total_ht;
    $sql_upd .= ", total_ttc = ".(float)$total_ht;
-    $sql_upd .= " WHERE rowid = ".(int)$line->fk_facturedet;
+    $sql_upd .= " WHERE rowid = ".(int)$line->detail_id;
    $db->query($sql_upd);
-    
+
    subtotaltitle_debug_log('✅ Subtotal #'.$line_id.' aktualisiert: '.$total_ht);
-    
+
    echo json_encode(array('success' => true, 'total_ht' => $total_ht));
    
+} elseif ($action == 'remove_all') {
+    // ========== ALLE SPEZIALZEILEN UND VERWAISTE EINTRÄGE ENTFERNEN ==========
+
+    // document_id wird benötigt
+    $document_id = GETPOST('document_id', 'int');
+    if (!$document_id) {
+        echo json_encode(array('success' => false, 'error' => 'Missing document_id'));
+        exit;
+    }
+
+    $removed_count = 0;
+    $orphan_count = 0;
+
+    // 1. Entferne ALLE Einträge mit special_code 100, 101, 102 aus der Detail-Tabelle
+    // (unabhängig davon ob sie noch in der Manager-Tabelle existieren)
+    $sql_delete_all = "DELETE FROM ".MAIN_DB_PREFIX.$tables['lines_table'];
+    $sql_delete_all .= " WHERE ".$tables['fk_parent']." = ".(int)$document_id;
+    $sql_delete_all .= " AND special_code IN (100, 101, 102)";
+
+    subtotaltitle_debug_log('🗑️ Remove ALL special lines: '.$sql_delete_all);
+
+    if ($db->query($sql_delete_all)) {
+        $removed_count = $db->affected_rows($db->query("SELECT ROW_COUNT()"));
+        // Fallback: Zähle manuell wenn affected_rows nicht funktioniert
+        if ($removed_count === 0) {
+            // Zähle vorher
+            $sql_count = "SELECT COUNT(*) as cnt FROM ".MAIN_DB_PREFIX.$tables['lines_table'];
+            $sql_count .= " WHERE ".$tables['fk_parent']." = ".(int)$document_id;
+            $sql_count .= " AND special_code IN (100, 101, 102)";
+            // Da wir schon gelöscht haben, ist es jetzt 0
+            $removed_count = -1; // Unbekannt, aber erfolgreich
+        }
+    }
+
+    // 2. Setze in_facturedet und fk_*det auf NULL für alle Manager-Einträge dieses Dokuments
+    $sql_reset = "UPDATE ".MAIN_DB_PREFIX."facture_lines_manager";
+    $sql_reset .= " SET ".$tables['fk_line']." = NULL, in_facturedet = 0";
+    $sql_reset .= " WHERE ".$tables['fk_parent']." = ".(int)$document_id;
+    $sql_reset .= " AND document_type = '".$db->escape($docType)."'";
+    $sql_reset .= " AND line_type IN ('section', 'text', 'subtotal')";
+
+    subtotaltitle_debug_log('🔄 Reset manager entries: '.$sql_reset);
+    $db->query($sql_reset);
+
+    // 3. Normalisiere die rang-Werte (schließe Lücken)
+    $sql_reorder = "SET @r = 0; UPDATE ".MAIN_DB_PREFIX.$tables['lines_table'];
+    $sql_reorder .= " SET rang = (@r := @r + 1)";
+    $sql_reorder .= " WHERE ".$tables['fk_parent']." = ".(int)$document_id;
+    $sql_reorder .= " ORDER BY rang";
+
+    // MySQL erlaubt kein SET in einer Anweisung mit UPDATE, also manuell:
+    $sql_get_lines = "SELECT rowid FROM ".MAIN_DB_PREFIX.$tables['lines_table'];
+    $sql_get_lines .= " WHERE ".$tables['fk_parent']." = ".(int)$document_id;
+    $sql_get_lines .= " ORDER BY rang";
+    $res_lines = $db->query($sql_get_lines);
+
+    $new_rang = 1;
+    while ($obj = $db->fetch_object($res_lines)) {
+        $sql_upd_rang = "UPDATE ".MAIN_DB_PREFIX.$tables['lines_table'];
+        $sql_upd_rang .= " SET rang = ".(int)$new_rang;
+        $sql_upd_rang .= " WHERE rowid = ".(int)$obj->rowid;
+        $db->query($sql_upd_rang);
+        $new_rang++;
+    }
+
+    subtotaltitle_debug_log('✅ Remove ALL completed: removed='.$removed_count);
+
+    echo json_encode(array(
+        'success' => true,
+        'removed' => $removed_count,
+        'orphans_cleaned' => $orphan_count,
+        'message' => 'Alle Spezialzeilen wurden entfernt'
+    ));
+
 } else {
    echo json_encode(array('success' => false, 'error' => 'Unknown action'));
 }
--- a/ajax/toggle_subtotal.php
+++ b/ajax/toggle_subtotal.php
@ -2,23 +2,32 @@
 define('NOTOKENRENEWAL', 1);
 require '../../../main.inc.php';
 dol_include_once('/subtotaltitle/lib/subtotaltitle.lib.php');
+require_once __DIR__.'/../class/DocumentTypeHelper.class.php';

 $section_id = GETPOST('section_id', 'int');
 $show = GETPOST('show', 'int');
+$docType = GETPOST('document_type', 'alpha');

-subtotaltitle_debug_log('🔢 toggle_subtotal: section=' . $section_id . ', show=' . $show);
+subtotaltitle_debug_log('🔢 toggle_subtotal: section=' . $section_id . ', show=' . $show . ', docType=' . $docType);

-if (!$section_id) {
-    echo json_encode(['success' => false, 'error' => 'Missing section_id']);
+if (!$section_id || !$docType) {
+    echo json_encode(['success' => false, 'error' => 'Missing parameters']);
+    exit;
+}
+
+// Hole die richtigen Tabellennamen für diesen Dokumenttyp
+$tables = DocumentTypeHelper::getTableNames($docType);
+if (!$tables) {
+    echo json_encode(['success' => false, 'error' => 'Invalid document type']);
    exit;
 }

 // Hole Section-Info
-$sql = "SELECT fk_facture, title FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+$sql = "SELECT fk_facture, fk_propal, fk_commande, title, document_type FROM ".MAIN_DB_PREFIX."facture_lines_manager";
 $sql .= " WHERE rowid = ".(int)$section_id;
 $resql = $db->query($sql);
 $section = $db->fetch_object($resql);
-$facture_id = $section->fk_facture;
+$facture_id = $section->{$tables['fk_parent']};

 $db->begin();

@ -39,8 +48,9 @@ if ($show) {
        // Berechne Zwischensumme
        $sql_sum = "SELECT SUM(d.total_ht) as total";
        $sql_sum .= " FROM ".MAIN_DB_PREFIX."facture_lines_manager m";
-        $sql_sum .= " INNER JOIN ".MAIN_DB_PREFIX."facturedet d ON d.rowid = m.fk_facturedet";
+        $sql_sum .= " INNER JOIN ".MAIN_DB_PREFIX.$tables['lines_table']." d ON d.rowid = m.".$tables['fk_line'];
        $sql_sum .= " WHERE m.parent_section = ".(int)$section_id;
+        $sql_sum .= " AND m.document_type = '".$db->escape($docType)."'";
        $sql_sum .= " AND m.line_type = 'product'";
        $res_sum = $db->query($sql_sum);
        $obj_sum = $db->fetch_object($res_sum);
@ -53,46 +63,64 @@ if ($show) {
        $res_last = $db->query($sql_last);
        $obj_last = $db->fetch_object($res_last);
        $last_order = $obj_last->max_order ? $obj_last->max_order : 0;
-        
-        // Neue line_order = nach letztem Produkt
+
+        // Wenn keine Produkte in der Section, nimm die line_order der Section selbst
+        if ($last_order == 0) {
+            $sql_sec = "SELECT line_order FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+            $sql_sec .= " WHERE rowid = ".(int)$section_id;
+            $res_sec = $db->query($sql_sec);
+            $obj_sec = $db->fetch_object($res_sec);
+            $last_order = $obj_sec->line_order ? $obj_sec->line_order : 0;
+        }
+
+        // Neue line_order = nach letztem Produkt (oder nach der Section selbst wenn leer)
        $new_order = $last_order + 1;
        
        // Alle nachfolgenden Zeilen +1
        $sql_shift = "UPDATE ".MAIN_DB_PREFIX."facture_lines_manager";
        $sql_shift .= " SET line_order = line_order + 1";
-        $sql_shift .= " WHERE fk_facture = ".(int)$facture_id;
+        $sql_shift .= " WHERE ".$tables['fk_parent']." = ".(int)$facture_id;
+        $sql_shift .= " AND document_type = '".$db->escape($docType)."'";
        $sql_shift .= " AND line_order >= ".$new_order;
        $db->query($sql_shift);
-        
+
+        // Bestimme FK-Felder
+        $fk_facture = ($docType === 'invoice') ? (int)$facture_id : 'NULL';
+        $fk_propal = ($docType === 'propal') ? (int)$facture_id : 'NULL';
+        $fk_commande = ($docType === 'order') ? (int)$facture_id : 'NULL';
+
        // Subtotal-Zeile in Manager-Tabelle einfügen
        $sql_ins = "INSERT INTO ".MAIN_DB_PREFIX."facture_lines_manager";
-        $sql_ins .= " (fk_facture, line_type, parent_section, title, line_order, date_creation)";
-        $sql_ins .= " VALUES (".(int)$facture_id.", 'subtotal', ".(int)$section_id.", 'Zwischensumme: ".addslashes($section->title)."', ".$new_order.", NOW())";
+        $sql_ins .= " (fk_facture, fk_propal, fk_commande, document_type, line_type, parent_section, title, line_order, date_creation)";
+        $sql_ins .= " VALUES (".$fk_facture.", ".$fk_propal.", ".$fk_commande.", '".$db->escape($docType)."', 'subtotal', ".(int)$section_id.", 'Zwischensumme: ".addslashes($section->title)."', ".$new_order.", NOW())";
        $db->query($sql_ins);
        $subtotal_manager_id = $db->last_insert_id(MAIN_DB_PREFIX."facture_lines_manager");

-        // Subtotal-Zeile auch direkt in facturedet einfügen
-        // Bestimme rang (nach letztem Produkt der Section)
+        // Subtotal-Zeile auch direkt in Detail-Tabelle einfügen
+        // Bestimme rang basierend auf line_order (EINHEITLICH für alle Zeilentypen)
+        // Finde den höchsten rang aller Zeilen, die VOR dieser neuen Subtotal-Zeile liegen
        $sql_rang = "SELECT MAX(d.rang) as max_rang";
        $sql_rang .= " FROM ".MAIN_DB_PREFIX."facture_lines_manager m";
-        $sql_rang .= " INNER JOIN ".MAIN_DB_PREFIX."facturedet d ON d.rowid = m.fk_facturedet";
-        $sql_rang .= " WHERE m.parent_section = ".(int)$section_id;
-        $sql_rang .= " AND m.line_type = 'product'";
+        $sql_rang .= " INNER JOIN ".MAIN_DB_PREFIX.$tables['lines_table']." d ON d.rowid = m.".$tables['fk_line'];
+        $sql_rang .= " WHERE m.".$tables['fk_parent']." = ".(int)$facture_id;
+        $sql_rang .= " AND m.document_type = '".$db->escape($docType)."'";
+        $sql_rang .= " AND m.line_order < ".(int)$new_order;
        $res_rang = $db->query($sql_rang);
        $obj_rang = $db->fetch_object($res_rang);
        $new_rang = ($obj_rang && $obj_rang->max_rang) ? $obj_rang->max_rang + 1 : 1;

        // Verschiebe nachfolgende Zeilen
-        $sql_shift_fd = "UPDATE ".MAIN_DB_PREFIX."facturedet";
+        $sql_shift_fd = "UPDATE ".MAIN_DB_PREFIX.$tables['lines_table'];
        $sql_shift_fd .= " SET rang = rang + 1";
-        $sql_shift_fd .= " WHERE fk_facture = ".(int)$facture_id;
+        $sql_shift_fd .= " WHERE ".$tables['fk_parent']." = ".(int)$facture_id;
        $sql_shift_fd .= " AND rang >= ".(int)$new_rang;
        $db->query($sql_shift_fd);

-        // Füge Subtotal in facturedet ein (special_code = 102)
-        $sql_ins_fd = "INSERT INTO ".MAIN_DB_PREFIX."facturedet";
-        $sql_ins_fd .= " (fk_facture, description, qty, subprice, total_ht, total_tva, total_ttc,";
-        $sql_ins_fd .= " tva_tx, product_type, special_code, rang, info_bits)";
+        // Füge Subtotal in Detail-Tabelle ein (special_code = 102)
+        $sql_ins_fd = "INSERT INTO ".MAIN_DB_PREFIX.$tables['lines_table'];
+        $sql_ins_fd .= " (".$tables['fk_parent'].", description, qty, subprice, total_ht, total_tva, total_ttc,";
+        $sql_ins_fd .= " tva_tx, product_type, special_code, rang, info_bits,";
+        $sql_ins_fd .= " multicurrency_subprice, multicurrency_total_ht, multicurrency_total_tva, multicurrency_total_ttc)";
        $sql_ins_fd .= " VALUES (";
        $sql_ins_fd .= (int)$facture_id.", ";
        $sql_ins_fd .= "'".$db->escape('Zwischensumme: '.$section->title)."', ";
@ -105,17 +133,22 @@ if ($show) {
        $sql_ins_fd .= "9, ";  // product_type = 9 (Titel/Kommentar)
        $sql_ins_fd .= "102, ";  // special_code = 102 (Subtotal)
        $sql_ins_fd .= (int)$new_rang.", ";
-        $sql_ins_fd .= "0)";
+        $sql_ins_fd .= "0, ";  // info_bits
+        $sql_ins_fd .= (float)$subtotal_ht.", ";  // multicurrency_subprice
+        $sql_ins_fd .= (float)$subtotal_ht.", ";  // multicurrency_total_ht
+        $sql_ins_fd .= "0, ";  // multicurrency_total_tva
+        $sql_ins_fd .= (float)$subtotal_ht.")";
        $db->query($sql_ins_fd);
-        $new_facturedet_id = $db->last_insert_id(MAIN_DB_PREFIX."facturedet");
+        $new_detail_id = $db->last_insert_id(MAIN_DB_PREFIX.$tables['lines_table']);

-        // Verknüpfe Manager-Eintrag mit facturedet
+        // Verknüpfe Manager-Eintrag mit Detail-Tabelle
        $sql_link = "UPDATE ".MAIN_DB_PREFIX."facture_lines_manager";
-        $sql_link .= " SET fk_facturedet = ".(int)$new_facturedet_id;
+        $sql_link .= " SET ".$tables['fk_line']." = ".(int)$new_detail_id;
+        $sql_link .= ", in_facturedet = 1";
        $sql_link .= " WHERE rowid = ".(int)$subtotal_manager_id;
        $db->query($sql_link);

-        subtotaltitle_debug_log('✅ Subtotal-Zeile erstellt für Section ' . $section_id . ' mit Summe ' . $subtotal_ht . ' (facturedet #' . $new_facturedet_id . ', special_code=102)');
+        subtotaltitle_debug_log('✅ Subtotal-Zeile erstellt für Section ' . $section_id . ' mit Summe ' . $subtotal_ht . ' ('.$tables['lines_table'].' #' . $new_detail_id . ', special_code=102)');
    }
 } else {
    // Hole erst fk_facturedet bevor wir löschen
--- a/class/DocumentTypeHelper.class.php
+++ b/class/DocumentTypeHelper.class.php
@ -0,0 +1,179 @@
+<?php
+/* Copyright (C) 2026		Eduard Wisch				<data@data-it-solution.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+/**
+ * \file    subtotaltitle/class/DocumentTypeHelper.class.php
+ * \ingroup subtotaltitle
+ * \brief   Helper class für verschiedene Dokumenttypen (Rechnung, Angebot, Auftrag)
+ */
+
+/**
+ * Class DocumentTypeHelper
+ * Hilfsklasse um mit verschiedenen Dokumenttypen zu arbeiten
+ */
+class DocumentTypeHelper
+{
+	/**
+	 * Erkennt den Dokumenttyp aus dem Context
+	 *
+	 * @param string $context Hook-Context (z.B. 'invoicecard', 'propalcard', 'ordercard')
+	 * @return string|null Dokumenttyp ('invoice', 'propal', 'order') oder null
+	 */
+	public static function getTypeFromContext($context)
+	{
+		if (strpos($context, 'invoicecard') !== false) {
+			return 'invoice';
+		}
+		if (strpos($context, 'propalcard') !== false) {
+			return 'propal';
+		}
+		if (strpos($context, 'ordercard') !== false) {
+			return 'order';
+		}
+		return null;
+	}
+
+	/**
+	 * Holt den Dokumenttyp aus dem Object
+	 *
+	 * @param object $object Dolibarr Objekt
+	 * @return string|null Dokumenttyp ('invoice', 'propal', 'order') oder null
+	 */
+	public static function getTypeFromObject($object)
+	{
+		if (!is_object($object) || !isset($object->element)) {
+			return null;
+		}
+
+		if ($object->element == 'facture') {
+			return 'invoice';
+		}
+		if ($object->element == 'propal') {
+			return 'propal';
+		}
+		if ($object->element == 'commande') {
+			return 'order';
+		}
+		return null;
+	}
+
+	/**
+	 * Holt die Tabellennamen für einen Dokumenttyp
+	 *
+	 * @param string $type Dokumenttyp ('invoice', 'propal', 'order')
+	 * @return array Array mit Tabellennamen (parent_table, lines_table, fk_parent, fk_line)
+	 */
+	public static function getTableNames($type)
+	{
+		$tables = array(
+			'invoice' => array(
+				'parent_table' => 'facture',
+				'lines_table' => 'facturedet',
+				'fk_parent' => 'fk_facture',
+				'fk_line' => 'fk_facturedet',
+				'element' => 'facture'
+			),
+			'propal' => array(
+				'parent_table' => 'propal',
+				'lines_table' => 'propaldet',
+				'fk_parent' => 'fk_propal',
+				'fk_line' => 'fk_propaldet',
+				'element' => 'propal'
+			),
+			'order' => array(
+				'parent_table' => 'commande',
+				'lines_table' => 'commandedet',
+				'fk_parent' => 'fk_commande',
+				'fk_line' => 'fk_commandedet',
+				'element' => 'commande'
+			)
+		);
+
+		return isset($tables[$type]) ? $tables[$type] : null;
+	}
+
+	/**
+	 * Holt die Hook-Contexts für einen Dokumenttyp
+	 *
+	 * @param string $type Dokumenttyp ('invoice', 'propal', 'order')
+	 * @return string Hook-Context
+	 */
+	public static function getContext($type)
+	{
+		$contexts = array(
+			'invoice' => 'invoicecard',
+			'propal' => 'propalcard',
+			'order' => 'ordercard'
+		);
+
+		return isset($contexts[$type]) ? $contexts[$type] : '';
+	}
+
+	/**
+	 * Laedt ein Dokument basierend auf Typ und ID
+	 *
+	 * @param string $type Dokumenttyp ('invoice', 'propal', 'order')
+	 * @param int $id Dokument-ID
+	 * @param DoliDB $db Datenbankverbindung
+	 * @return object|null Dolibarr Objekt oder null
+	 */
+	public static function loadDocument($type, $id, $db)
+	{
+		$object = null;
+
+		if ($type == 'invoice') {
+			require_once DOL_DOCUMENT_ROOT.'/compta/facture/class/facture.class.php';
+			$object = new Facture($db);
+		} elseif ($type == 'propal') {
+			require_once DOL_DOCUMENT_ROOT.'/comm/propal/class/propal.class.php';
+			$object = new Propal($db);
+		} elseif ($type == 'order') {
+			require_once DOL_DOCUMENT_ROOT.'/commande/class/commande.class.php';
+			$object = new Commande($db);
+		}
+
+		if ($object && $object->fetch($id) > 0) {
+			return $object;
+		}
+
+		return null;
+	}
+
+	/**
+	 * Prueft ob ein Dokument im Entwurfsstatus ist
+	 *
+	 * @param object $object Dolibarr Objekt
+	 * @param string $type Dokumenttyp ('invoice', 'propal', 'order')
+	 * @return bool true wenn Entwurf, sonst false
+	 */
+	public static function isDraft($object, $type)
+	{
+		if (!$object) {
+			return false;
+		}
+
+		// Verschiedene Dokumenttypen haben unterschiedliche Status-Felder
+		if (isset($object->statut)) {
+			return ($object->statut == 0);
+		}
+		if (isset($object->status)) {
+			return ($object->status == 0);
+		}
+
+		return false;
+	}
+}
--- a/class/actions_subtotaltitle.class.php
+++ b/class/actions_subtotaltitle.class.php
--- a/core/modules/modSubtotalTitle.class.php
+++ b/core/modules/modSubtotalTitle.class.php
@ -66,9 +66,9 @@ class modSubtotalTitle extends DolibarrModules

 		// DESCRIPTION_FLAG
 		// Module description, used if translation string 'ModuleSubtotalTitleDesc' not found (SubtotalTitle is name of module).
-		$this->description = "Positionsgruppen und Zwischensummen für Rechnungen";
+		$this->description = "Positionsgruppen und Zwischensummen für Rechnungen, Angebote und Kundenaufträge";
 		// Used only if file README.md and README-LL.md not found.
-		$this->descriptionlong = "Organisieren Sie Rechnungspositionen in Sections mit automatischen Zwischensummen. Fügen Sie Textzeilen hinzu und verwalten Sie komplexe Rechnungen übersichtlich.";
+		$this->descriptionlong = "Organisieren Sie Positionen in Sections mit automatischen Zwischensummen. Fügen Sie Textzeilen hinzu und verwalten Sie komplexe Dokumente übersichtlich. Unterstützt Rechnungen, Angebote und Kundenaufträge.";

 		// Author
 		$this->editor_name = 'Alles Watt läuft (Testsystem)';
@ -76,7 +76,7 @@ class modSubtotalTitle extends DolibarrModules
 		$this->editor_squarred_logo = '';					// Must be image filename into the module/img directory followed with @modulename. Example: 'myimage.png@subtotaltitle'

 		// Possible values for version are: 'development', 'experimental', 'dolibarr', 'dolibarr_deprecated', 'experimental_deprecated' or a version string like 'x.y.z'
-		$this->version = '1.0';
+		$this->version = '4.1';
 		// Url to the file with your last numberversion of this module
 		//$this->url_last_version = 'http://www.example.com/versionmodule.txt';

@ -122,6 +122,8 @@ class modSubtotalTitle extends DolibarrModules
 			/* BEGIN MODULEBUILDER HOOKSCONTEXTS */
 			'hooks' => array(
 				'invoicecard',
+				'propalcard',
+				'ordercard',
 			),
 			/* END MODULEBUILDER HOOKSCONTEXTS */
 			// Set this to 1 if features of module are opened to external users
--- a/core/substitutions/functions_subtotaltitle.lib.php
+++ b/core/substitutions/functions_subtotaltitle.lib.php
--- a/css/subtotaltitle.css
+++ b/css/subtotaltitle.css
@ -78,8 +78,11 @@ tr.textline-row {

 tr.textline-row .linecolmove {
    cursor: move;
+    min-width: 20px;
 }

+/* Drag-Handle wird über JavaScript als background-image gesetzt (wie Dolibarr) */
+
 tr.textline-row:hover {
    background-color: #f5f5f5 !important;
 }
--- a/css/subtotaltitle_sync.css
+++ b/css/subtotaltitle_sync.css
--- a/debug_sections.php
+++ b/debug_sections.php
@ -0,0 +1,64 @@
+<?php
+// Debug-Script um Sections zu prüfen
+require_once '../../main.inc.php';
+require_once __DIR__.'/class/DocumentTypeHelper.class.php';
+
+$order_id = 18; // Die Order-ID aus der Konsole
+$docType = 'order';
+
+$tables = DocumentTypeHelper::getTableNames($docType);
+
+echo "<h2>Debug: Sections für Order ID $order_id</h2>";
+
+// SQL-Abfrage 1: Alle Einträge für diese Order
+$sql1 = "SELECT * FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+$sql1 .= " WHERE ".$tables['fk_parent']." = ".(int)$order_id;
+$sql1 .= " ORDER BY line_order";
+
+echo "<h3>SQL 1: Alle Einträge</h3>";
+echo "<pre>".htmlspecialchars($sql1)."</pre>";
+
+$resql1 = $db->query($sql1);
+if ($resql1) {
+    echo "<table border='1'><tr><th>rowid</th><th>fk_commande</th><th>document_type</th><th>line_type</th><th>title</th><th>line_order</th></tr>";
+    while ($obj = $db->fetch_object($resql1)) {
+        echo "<tr>";
+        echo "<td>".$obj->rowid."</td>";
+        echo "<td>".$obj->fk_commande."</td>";
+        echo "<td>".$obj->document_type."</td>";
+        echo "<td>".$obj->line_type."</td>";
+        echo "<td>".$obj->title."</td>";
+        echo "<td>".$obj->line_order."</td>";
+        echo "</tr>";
+    }
+    echo "</table>";
+} else {
+    echo "<p style='color:red'>Fehler: ".$db->lasterror()."</p>";
+}
+
+// SQL-Abfrage 2: Nur Sections mit document_type
+$sql2 = "SELECT * FROM ".MAIN_DB_PREFIX."facture_lines_manager";
+$sql2 .= " WHERE ".$tables['fk_parent']." = ".(int)$order_id;
+$sql2 .= " AND document_type = '".$db->escape($docType)."'";
+$sql2 .= " AND line_type = 'section'";
+$sql2 .= " ORDER BY line_order";
+
+echo "<h3>SQL 2: Sections mit document_type = 'order'</h3>";
+echo "<pre>".htmlspecialchars($sql2)."</pre>";
+
+$resql2 = $db->query($sql2);
+if ($resql2) {
+    $num = $db->num_rows($resql2);
+    echo "<p><strong>Anzahl gefunden: $num</strong></p>";
+    echo "<table border='1'><tr><th>rowid</th><th>title</th><th>line_order</th></tr>";
+    while ($obj = $db->fetch_object($resql2)) {
+        echo "<tr>";
+        echo "<td>".$obj->rowid."</td>";
+        echo "<td>".$obj->title."</td>";
+        echo "<td>".$obj->line_order."</td>";
+        echo "</tr>";
+    }
+    echo "</table>";
+} else {
+    echo "<p style='color:red'>Fehler: ".$db->lasterror()."</p>";
+}
--- a/img/grip.png
+++ b/img/grip.png
--- a/js/mark_line_orders.js
+++ b/js/mark_line_orders.js
@ -3,7 +3,7 @@ $(document).ready(function() {
    var factureId = getFactureId();
    if (!factureId) return;

-    $.get('/dolibarr/custom/subtotaltitle/ajax/get_line_orders.php', {
+    $.get(subtotaltitleAjaxUrl + 'get_line_orders.php', {
        facture_id: factureId
    }, function(response) {
        if (!response.success) return;
--- a/js/subtotaltitle.js
+++ b/js/subtotaltitle.js
--- a/js/subtotaltitle_sync.js
+++ b/js/subtotaltitle_sync.js
@ -3,6 +3,20 @@
 // Für Synchronisation mit facturedet
 // ==========================================

+/**
+ * Erkenne Dokumenttyp aus URL (lokale Kopie für Sync)
+ */
+function getDocumentTypeForSync() {
+    var url = window.location.href;
+    var docType = 'invoice'; // Default
+    if (url.indexOf('/comm/propal/') !== -1) {
+        docType = 'propal';
+    } else if (url.indexOf('/commande/') !== -1) {
+        docType = 'order';
+    }
+    return docType;
+}
+
 /**
 * Synchronisiert eine Zeile mit facturedet (hinzufügen)
 */
@ -10,23 +24,27 @@ function syncToFacturedet(lineId, lineType) {
    var lang = (typeof subtotalTitleLang !== 'undefined') ? subtotalTitleLang : {};
    debugLog('📤 Sync to facturedet: ' + lineType + ' #' + lineId);

-    $.post('/dolibarr/custom/subtotaltitle/ajax/sync_to_facturedet.php', {
+    var docType = getDocumentTypeForSync();
+    debugLog('Document type: ' + docType);
+
+    $.post(subtotaltitleAjaxUrl + 'sync_to_facturedet.php', {
        action: 'add',
        line_id: lineId,
-        line_type: lineType
+        line_type: lineType,
+        document_type: docType
    }, function(response) {
        debugLog('Sync response: ' + JSON.stringify(response));
        if (response.success) {
            updateSyncCheckbox(lineId, true);
            debugLog('✅ Zeile zu Rechnung hinzugefügt');
        } else {
-            alert((lang.errorSyncing || 'Fehler') + ': ' + (response.error || 'Unbekannter Fehler'));
+            showErrorAlert((lang.errorSyncing || 'Fehler') + ': ' + (response.error || 'Unbekannter Fehler'));
            // Checkbox zurücksetzen
            $('.sync-checkbox[data-line-id="' + lineId + '"]').prop('checked', false);
        }
    }, 'json').fail(function(xhr, status, error) {
        debugLog('AJAX Fehler: ' + status + ' ' + error);
-        alert((lang.errorSyncing || 'Fehler beim Synchronisieren') + ': ' + error);
+        showErrorAlert((lang.errorSyncing || 'Fehler beim Synchronisieren') + ': ' + error);
        $('.sync-checkbox[data-line-id="' + lineId + '"]').prop('checked', false);
    });
 }
@ -36,32 +54,42 @@ function syncToFacturedet(lineId, lineType) {
 */
 function removeFromFacturedet(lineId, lineType) {
    var lang = (typeof subtotalTitleLang !== 'undefined') ? subtotalTitleLang : {};
-    if (!confirm(lang.confirmRemoveLine || 'Zeile aus der Rechnung entfernen?\n\nDie Zeile bleibt in der Positionsgruppen-Verwaltung erhalten.')) {
-        // Checkbox zurücksetzen
-        $('.sync-checkbox[data-line-id="' + lineId + '"]').prop('checked', true);
-        return;
-    }

-    debugLog('📥 Remove from facturedet: ' + lineType + ' #' + lineId);
+    showConfirmDialog(
+        'Aus Rechnung entfernen',
+        lang.confirmRemoveLine || 'Zeile aus der Rechnung entfernen?<br><br><em>Die Zeile bleibt in der Positionsgruppen-Verwaltung erhalten.</em>',
+        function() {
+            debugLog('📥 Remove from facturedet: ' + lineType + ' #' + lineId);

-    $.post('/dolibarr/custom/subtotaltitle/ajax/sync_to_facturedet.php', {
-        action: 'remove',
-        line_id: lineId,
-        line_type: lineType
-    }, function(response) {
-        debugLog('Remove response: ' + JSON.stringify(response));
-        if (response.success) {
-            updateSyncCheckbox(lineId, false);
-            debugLog('✅ Zeile aus Rechnung entfernt');
-        } else {
-            alert((lang.errorSyncing || 'Fehler') + ': ' + (response.error || 'Unbekannter Fehler'));
-            $('.sync-checkbox[data-line-id="' + lineId + '"]').prop('checked', true);
-        }
-    }, 'json').fail(function(xhr, status, error) {
-        debugLog('AJAX Fehler: ' + status + ' ' + error);
-        alert((lang.errorSyncing || 'Fehler') + ': ' + error);
-        $('.sync-checkbox[data-line-id="' + lineId + '"]').prop('checked', true);
-    });
+            var docType = getDocumentTypeForSync();
+            debugLog('Document type: ' + docType);
+
+            $.post(subtotaltitleAjaxUrl + 'sync_to_facturedet.php', {
+                action: 'remove',
+                line_id: lineId,
+                line_type: lineType,
+                document_type: docType
+            }, function(response) {
+                debugLog('Remove response: ' + JSON.stringify(response));
+                if (response.success) {
+                    updateSyncCheckbox(lineId, false);
+                    debugLog('✅ Zeile aus Rechnung entfernt');
+                } else {
+                    showErrorAlert((lang.errorSyncing || 'Fehler') + ': ' + (response.error || 'Unbekannter Fehler'));
+                    $('.sync-checkbox[data-line-id="' + lineId + '"]').prop('checked', true);
+                }
+            }, 'json').fail(function(xhr, status, error) {
+                debugLog('AJAX Fehler: ' + status + ' ' + error);
+                showErrorAlert((lang.errorSyncing || 'Fehler') + ': ' + error);
+                $('.sync-checkbox[data-line-id="' + lineId + '"]').prop('checked', true);
+            });
+        },
+        'Ja, entfernen',
+        'Abbrechen'
+    );
+
+    // Checkbox zurücksetzen bis Bestätigung
+    $('.sync-checkbox[data-line-id="' + lineId + '"]').prop('checked', true);
 }

 /**
@ -69,7 +97,7 @@ function removeFromFacturedet(lineId, lineType) {
 */
 function toggleFacturedetSync(lineId, lineType, checkbox) {
    if (event) event.stopPropagation();
-    
+
    if (checkbox.checked) {
        syncToFacturedet(lineId, lineType);
    } else {
@ -83,7 +111,7 @@ function toggleFacturedetSync(lineId, lineType, checkbox) {
 function updateSyncCheckbox(lineId, isInFacturedet) {
    var $checkbox = $('.sync-checkbox[data-line-id="' + lineId + '"]');
    $checkbox.prop('checked', isInFacturedet);
-    
+
    var $row = $checkbox.closest('tr');
    if (isInFacturedet) {
        $row.addClass('in-facturedet');
@ -97,107 +125,106 @@ function updateSyncCheckbox(lineId, isInFacturedet) {
 */
 function syncAllToFacturedet() {
    var lang = (typeof subtotalTitleLang !== 'undefined') ? subtotalTitleLang : {};
-    if (!confirm(lang.confirmSyncAll || 'Alle Positionsgruppen-Elemente (Sections, Textzeilen, Zwischensummen) zur Rechnung hinzufügen?')) {
-        return;
-    }
-
-    debugLog('📤 Sync ALL to facturedet...');

    var $unchecked = $('.sync-checkbox:not(:checked)');
    var total = $unchecked.length;
-    var done = 0;
-    var errors = 0;

    if (total === 0) {
-        alert(lang.allElementsAlreadyInInvoice || 'Alle Elemente sind bereits in der Rechnung.');
+        showErrorAlert(lang.allElementsAlreadyInInvoice || 'Alle Elemente sind bereits in der Rechnung.');
        return;
    }

-    $unchecked.each(function() {
-        var lineId = $(this).data('line-id');
-        var lineType = $(this).data('line-type');
+    showConfirmDialog(
+        'Alle zur Rechnung hinzufügen',
+        lang.confirmSyncAll || 'Alle Positionsgruppen-Elemente (Sections, Textzeilen, Zwischensummen) zur Rechnung hinzufügen?',
+        function() {
+            debugLog('📤 Sync ALL to facturedet...');

-        $.post('/dolibarr/custom/subtotaltitle/ajax/sync_to_facturedet.php', {
-            action: 'add',
-            line_id: lineId,
-            line_type: lineType
-        }, function(response) {
-            done++;
-            if (response.success) {
-                updateSyncCheckbox(lineId, true);
-            } else {
-                errors++;
-            }
-            if (done >= total) {
-                debugLog('✅ Sync abgeschlossen: ' + (total - errors) + ' erfolgreich, ' + errors + ' Fehler');
-                if (errors > 0) {
-                    var msg = (lang.elementsAddedWithErrors || '%s von %s Elementen hinzugefügt.\n%s Fehler aufgetreten.')
-                        .replace('%s', total - errors).replace('%s', total).replace('%s', errors);
-                    alert(msg);
-                } else {
-                    var msg = (lang.elementsAddedToInvoice || '%s Elemente zur Rechnung hinzugefügt.').replace('%s', total);
-                    alert(msg);
-                }
-            }
-        }, 'json').fail(function() {
-            done++;
-            errors++;
-        });
-    });
+            var done = 0;
+            var errors = 0;
+            var docType = getDocumentTypeForSync();
+
+            // Zeige Loading-Hinweis
+            $('body').append('<div id="sync-loading" style="position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,0.3);z-index:9999;display:flex;align-items:center;justify-content:center;"><div style="background:#fff;padding:20px 40px;border-radius:8px;box-shadow:0 2px 10px rgba(0,0,0,0.2);">Synchronisiere... Bitte warten.</div></div>');
+
+            $unchecked.each(function() {
+                var lineId = $(this).data('line-id');
+                var lineType = $(this).data('line-type');
+
+                $.post(subtotaltitleAjaxUrl + 'sync_to_facturedet.php', {
+                    action: 'add',
+                    line_id: lineId,
+                    line_type: lineType,
+                    document_type: docType
+                }, function(response) {
+                    done++;
+                    if (!response.success) {
+                        errors++;
+                    }
+                    if (done >= total) {
+                        debugLog('✅ Sync abgeschlossen: ' + (total - errors) + ' erfolgreich, ' + errors + ' Fehler');
+                        if (errors > 0) {
+                            $('#sync-loading').remove();
+                            showErrorAlert((total - errors) + ' von ' + total + ' Elementen hinzugefügt. ' + errors + ' Fehler aufgetreten.');
+                        } else {
+                            // Direkt reloaden ohne UI-Update
+                            safeReload();
+                        }
+                    }
+                }, 'json').fail(function() {
+                    done++;
+                    errors++;
+                });
+            });
+        },
+        'Ja, hinzufügen',
+        'Abbrechen'
+    );
 }

 /**
 * Entfernt ALLE Sections/Textzeilen/Subtotals aus facturedet
+ * Inkl. verwaister Einträge die nicht mehr in der Manager-Tabelle existieren
 */
 function removeAllFromFacturedet() {
    var lang = (typeof subtotalTitleLang !== 'undefined') ? subtotalTitleLang : {};
-    if (!confirm(lang.confirmRemoveAll || 'ALLE Positionsgruppen-Elemente aus der Rechnung entfernen?\n\nDie Elemente bleiben in der Verwaltung erhalten.')) {
-        return;
-    }

-    debugLog('📥 Remove ALL from facturedet...');
+    showConfirmDialog(
+        'Alle aus Rechnung entfernen',
+        (lang.confirmRemoveAll || 'ALLE Positionsgruppen-Elemente (Sections, Textzeilen, Zwischensummen) aus der Rechnung entfernen?') +
+        '<br><br><em>Inkl. verwaister Einträge. Die Elemente in der Verwaltung bleiben erhalten.</em>',
+        function() {
+            debugLog('📥 Remove ALL from facturedet (server-side)...');

-    var $checked = $('.sync-checkbox:checked');
-    var total = $checked.length;
-    var done = 0;
-    var errors = 0;
+            var docType = getDocumentTypeForSync();
+            var documentId = getFactureId();

-    if (total === 0) {
-        alert(lang.noElementsInInvoice || 'Keine Elemente in der Rechnung vorhanden.');
-        return;
-    }
-
-    $checked.each(function() {
-        var lineId = $(this).data('line-id');
-        var lineType = $(this).data('line-type');
-
-        $.post('/dolibarr/custom/subtotaltitle/ajax/sync_to_facturedet.php', {
-            action: 'remove',
-            line_id: lineId,
-            line_type: lineType
-        }, function(response) {
-            done++;
-            if (response.success) {
-                updateSyncCheckbox(lineId, false);
-            } else {
-                errors++;
+            if (!documentId) {
+                showErrorAlert('Fehler: Keine Dokument-ID gefunden');
+                return;
            }
-            if (done >= total) {
-                debugLog('✅ Remove abgeschlossen: ' + (total - errors) + ' erfolgreich, ' + errors + ' Fehler');
-                if (errors > 0) {
-                    var msg = (lang.elementsRemovedWithErrors || '%s von %s Elementen entfernt.\n%s Fehler aufgetreten.')
-                        .replace('%s', total - errors).replace('%s', total).replace('%s', errors);
-                    alert(msg);
+
+            $.post(subtotaltitleAjaxUrl + 'sync_to_facturedet.php', {
+                action: 'remove_all',
+                line_id: 1, // Dummy, wird benötigt wegen Parameter-Check
+                document_id: documentId,
+                document_type: docType
+            }, function(response) {
+                debugLog('Remove ALL response: ' + JSON.stringify(response));
+                if (response.success) {
+                    debugLog('✅ Alle Spezialzeilen entfernt');
+                    safeReload();
                } else {
-                    var msg = (lang.elementsRemovedFromInvoice || '%s Elemente aus Rechnung entfernt.').replace('%s', total);
-                    alert(msg);
+                    showErrorAlert((lang.errorSyncing || 'Fehler') + ': ' + (response.error || 'Unbekannter Fehler'));
                }
-            }
-        }, 'json').fail(function() {
-            done++;
-            errors++;
-        });
-    });
+            }, 'json').fail(function(xhr, status, error) {
+                debugLog('AJAX Fehler: ' + status + ' ' + error);
+                showErrorAlert((lang.errorSyncing || 'Fehler') + ': ' + error);
+            });
+        },
+        'Ja, alle entfernen',
+        'Abbrechen'
+    );
 }

 /**
@ -205,22 +232,25 @@ function removeAllFromFacturedet() {
 */
 function updateAllSubtotals() {
    debugLog('🔄 Update all subtotals...');
-    
+
    var $subtotals = $('.sync-checkbox[data-line-type="subtotal"]:checked');
    var total = $subtotals.length;
    var done = 0;
-    
+
    if (total === 0) {
        debugLog('Keine Subtotals in facturedet');
        return;
    }
-    
+
+    var docType = getDocumentTypeForSync();
+
    $subtotals.each(function() {
        var lineId = $(this).data('line-id');
-        
-        $.post('/dolibarr/custom/subtotaltitle/ajax/sync_to_facturedet.php', {
+
+        $.post(subtotaltitleAjaxUrl + 'sync_to_facturedet.php', {
            action: 'update_subtotal',
-            line_id: lineId
+            line_id: lineId,
+            document_type: docType
        }, function(response) {
            done++;
            debugLog('Subtotal #' + lineId + ' updated: ' + JSON.stringify(response));
--- a/langs/de_DE/subtotaltitle.lang
+++ b/langs/de_DE/subtotaltitle.lang
@ -85,10 +85,10 @@ ButtonCancel = Abbrechen
 #
 # UI Elements - Section Actions
 #
-SectionCreate = Section erstellen
-SectionEdit = Section bearbeiten
-SectionDelete = Section löschen
-SectionName = Section-Name
+SectionCreate = Produktgruppe erstellen
+SectionEdit = Produktgruppe bearbeiten
+SectionDelete = Produktgruppe löschen
+SectionName = Name der Produktgruppe
 SectionSubtotal = Zwischensumme anzeigen
 ProductCount = Produkte

@ -143,3 +143,14 @@ ElementsRemovedWithErrors = %s von %s Elementen entfernt.\n%s Fehler aufgetreten
 SuccessSyncedToInvoice = Erfolgreich zur Rechnung synchronisiert
 SuccessRemovedFromInvoice = Erfolgreich aus Rechnung entfernt
 ErrorSyncing = Fehler beim Synchronisieren
+
+#
+# UI Elements - Import from Origin
+#
+ImportFromOrigin = Produktgruppen importieren
+ImportFromOriginTitle = Produktgruppen importieren
+ImportFromOriginConfirm = Produktgruppen aus %origin% importieren?
+ImportFromOriginSuccess = Import erfolgreich!
+ImportFromOriginNoOrigin = Kein Ursprungsdokument verknüpft. Dieses Dokument wurde nicht aus einem Angebot oder Auftrag erstellt.
+ImportFromOriginNoData = Das Ursprungsdokument enthält keine Produktgruppen oder Textzeilen zum Importieren.
+ImportFromOriginError = Fehler beim Import
--- a/langs/en_US/subtotaltitle.lang
+++ b/langs/en_US/subtotaltitle.lang
@ -85,10 +85,10 @@ ButtonCancel = Cancel
 #
 # UI Elements - Section Actions
 #
-SectionCreate = Create section
-SectionEdit = Edit section
-SectionDelete = Delete section
-SectionName = Section name
+SectionCreate = Create product group
+SectionEdit = Edit product group
+SectionDelete = Delete product group
+SectionName = Product group name
 SectionSubtotal = Show subtotal
 ProductCount = Products

@ -143,3 +143,14 @@ ElementsRemovedWithErrors = %s of %s elements removed.\n%s errors occurred.
 SuccessSyncedToInvoice = Successfully synced to invoice
 SuccessRemovedFromInvoice = Successfully removed from invoice
 ErrorSyncing = Error syncing
+
+#
+# UI Elements - Import from Origin
+#
+ImportFromOrigin = Import product groups
+ImportFromOriginTitle = Import product groups
+ImportFromOriginConfirm = Import product groups from %origin%?
+ImportFromOriginSuccess = Import successful!
+ImportFromOriginNoOrigin = No origin document linked. This document was not created from a proposal or order.
+ImportFromOriginNoData = The origin document contains no product groups or text lines to import.
+ImportFromOriginError = Error during import
--- a/sql/llx_facture_lines_manager.sql
+++ b/sql/llx_facture_lines_manager.sql
@ -0,0 +1,51 @@
+-- ============================================================================
+-- Copyright (C) 2026 Eduard Wisch <data@data-it-solution.de>
+--
+-- This program is free software: you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as published by
+-- the Free Software Foundation, either version 3 of the License, or
+-- (at your option) any later version.
+-- ============================================================================
+
+CREATE TABLE IF NOT EXISTS llx_facture_lines_manager (
+    rowid           INTEGER AUTO_INCREMENT PRIMARY KEY,
+
+    -- Verknüpfung mit dem Elterndokument (nur eines davon ist gesetzt)
+    fk_facture      INTEGER DEFAULT NULL,       -- Rechnung
+    fk_propal       INTEGER DEFAULT NULL,       -- Angebot
+    fk_commande     INTEGER DEFAULT NULL,       -- Kundenauftrag
+
+    -- Dokumenttyp zur einfachen Unterscheidung
+    document_type   VARCHAR(20) DEFAULT 'invoice',  -- 'invoice', 'propal', 'order'
+
+    -- Zeilentyp
+    line_type       VARCHAR(20) NOT NULL,       -- 'section', 'product', 'text', 'subtotal'
+
+    -- Verknüpfung zur Detail-Tabelle (facturedet, propaldet, commandedet)
+    fk_facturedet   INTEGER DEFAULT NULL,       -- für Rechnungen
+    fk_propaldet    INTEGER DEFAULT NULL,       -- für Angebote
+    fk_commandedet  INTEGER DEFAULT NULL,       -- für Kundenaufträge
+
+    -- Section-Eigenschaften
+    title           VARCHAR(255) DEFAULT NULL,
+    parent_section  INTEGER DEFAULT NULL,       -- FK zu rowid dieser Tabelle
+
+    -- Sortierung und Status
+    line_order      INTEGER DEFAULT 0,
+    show_subtotal   TINYINT DEFAULT 0,          -- Zwischensumme anzeigen?
+    collapsed       TINYINT DEFAULT 0,          -- Section eingeklappt?
+    in_facturedet   TINYINT DEFAULT 0,          -- In der Detail-Tabelle vorhanden?
+
+    -- Zeitstempel
+    date_creation   DATETIME DEFAULT NULL,
+    tms             TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+
+    -- Indizes
+    INDEX idx_flm_fk_facture (fk_facture),
+    INDEX idx_flm_fk_propal (fk_propal),
+    INDEX idx_flm_fk_commande (fk_commande),
+    INDEX idx_flm_document_type (document_type),
+    INDEX idx_flm_line_type (line_type),
+    INDEX idx_flm_parent_section (parent_section),
+    INDEX idx_flm_line_order (line_order)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
--- a/subtotaltitle.kdev4
+++ b/subtotaltitle.kdev4
@ -1,4 +0,0 @@
-[Project]
-CreatedFrom=
-Manager=KDevCustomBuildSystem
-Name=subtotaltitle