diff --git a/.gitignore b/.gitignore
old mode 100644
new mode 100755
diff --git a/ChangeLog.md b/ChangeLog.md
index 033788d..c5ed219 100755
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,5 +1,14 @@
 # Changelog - Metallzuschlag Modul
 
+## 1.3 (2026-02-24)
+
+### Neu
+- Dashboard: Kabel-Kupferzuschlag-Diagramm mit zeitgenauem Verlauf
+- Kabel-Auswahl: Einzelne oder alle Kabel ein-/ausblenden
+- Modus-Auswahl: EUR/m (Stueckpreis) oder Gesamtbetrag (mit Mindestmenge)
+- API: getProductsWithKupfergehalt() - alle Kabel mit Kupfergehalt
+- API: getCableChartData() - Kupferzuschlag-Verlauf berechnen
+
 ## 1.2 (2026-02-24)
 
 ### Geaendert
diff --git a/class/metallzuschlagapi.class.php b/class/metallzuschlagapi.class.php
old mode 100644
new mode 100755
index c52cf94..fde52ab
--- a/class/metallzuschlagapi.class.php
+++ b/class/metallzuschlagapi.class.php
@@ -489,4 +489,138 @@ class MetallzuschlagApi
 
 		return $result;
 	}
+
+	/**
+	 * Alle Produkte mit Kupfergehalt > 0 holen
+	 *
+	 * @return array  Array von Objekten mit id, ref, label, kupfergehalt
+	 */
+	public function getProductsWithKupfergehalt()
+	{
+		$results = array();
+
+		$sql = "SELECT p.rowid, p.ref, p.label, pe.kupfergehalt";
+		$sql .= " FROM ".$this->db->prefix()."product p";
+		$sql .= " INNER JOIN ".$this->db->prefix()."product_extrafields pe ON pe.fk_object = p.rowid";
+		$sql .= " WHERE pe.kupfergehalt IS NOT NULL AND pe.kupfergehalt > 0";
+		$sql .= " ORDER BY p.ref ASC";
+
+		$resql = $this->db->query($sql);
+		if ($resql) {
+			while ($obj = $this->db->fetch_object($resql)) {
+				$results[] = $obj;
+			}
+		}
+
+		return $results;
+	}
+
+	/**
+	 * Kupferzuschlag-Verlauf fuer Kabel berechnen
+	 *
+	 * @param  int    $days        Zeitraum in Tagen
+	 * @param  array  $productIds  Produkt-IDs (leer = alle mit Kupfergehalt)
+	 * @param  string $mode        'per_meter' oder 'total' (mit Mindestmenge)
+	 * @param  string $source      Quelle fuer CU-Notierungen
+	 * @return array               ['labels' => [...], 'products' => [id => ['label' => name, 'data' => [...]]]]
+	 */
+	public function getCableChartData($days = 90, $productIds = array(), $mode = 'per_meter', $source = 'sonepar')
+	{
+		$result = array(
+			'labels' => array(),
+			'products' => array(),
+		);
+
+		// CU-Notierungen im Zeitraum holen
+		$dateFrom = date('Y-m-d', strtotime('-'.$days.' days'));
+
+		$sql = "SELECT date_notiz, value";
+		$sql .= " FROM ".$this->db->prefix()."metallzuschlag_history";
+		$sql .= " WHERE metal = 'CU'";
+		$sql .= " AND source = '".$this->db->escape($source)."'";
+		$sql .= " AND date_notiz >= '".$this->db->escape($dateFrom)."'";
+		$sql .= " ORDER BY date_notiz ASC";
+
+		$resql = $this->db->query($sql);
+		if (!$resql) {
+			return $result;
+		}
+
+		$cuByDate = array();
+		while ($obj = $this->db->fetch_object($resql)) {
+			$cuByDate[$obj->date_notiz] = (float) $obj->value;
+			$result['labels'][] = $obj->date_notiz;
+		}
+
+		if (empty($result['labels'])) {
+			return $result;
+		}
+
+		// Produkte mit Kupfergehalt holen
+		$sqlProd = "SELECT p.rowid, p.ref, p.label, pe.kupfergehalt";
+		$sqlProd .= " FROM ".$this->db->prefix()."product p";
+		$sqlProd .= " INNER JOIN ".$this->db->prefix()."product_extrafields pe ON pe.fk_object = p.rowid";
+		$sqlProd .= " WHERE pe.kupfergehalt IS NOT NULL AND pe.kupfergehalt > 0";
+
+		if (!empty($productIds)) {
+			$sqlProd .= " AND p.rowid IN (".implode(',', array_map('intval', $productIds)).")";
+		}
+
+		$sqlProd .= " ORDER BY p.ref ASC";
+
+		$resProd = $this->db->query($sqlProd);
+		if (!$resProd) {
+			return $result;
+		}
+
+		while ($product = $this->db->fetch_object($resProd)) {
+			$kupfergehalt = (float) $product->kupfergehalt;
+			$productId = (int) $product->rowid;
+
+			// Mindestmenge ermitteln (kleinste quantity aus Einkaufspreisen)
+			$quantity = 1;
+			if ($mode === 'total') {
+				$sqlQty = "SELECT MIN(quantity) as min_qty";
+				$sqlQty .= " FROM ".$this->db->prefix()."product_fournisseur_price";
+				$sqlQty .= " WHERE fk_product = ".$productId;
+				$sqlQty .= " AND quantity > 0";
+
+				$resQty = $this->db->query($sqlQty);
+				if ($resQty && $this->db->num_rows($resQty) > 0) {
+					$objQty = $this->db->fetch_object($resQty);
+					if ($objQty->min_qty > 0) {
+						$quantity = (float) $objQty->min_qty;
+					}
+				}
+			}
+
+			// Kupferzuschlag fuer jeden Tag berechnen
+			$data = array();
+			foreach ($result['labels'] as $date) {
+				$cuNotiz = isset($cuByDate[$date]) ? $cuByDate[$date] : 0;
+				if ($cuNotiz > 0) {
+					// Kupferzuschlag = Kupfergehalt × CU / 100.000 × Menge
+					$data[] = round($kupfergehalt * $cuNotiz / 100000 * $quantity, 2);
+				} else {
+					$data[] = null;
+				}
+			}
+
+			$label = $product->ref;
+			if (!empty($product->label)) {
+				$label .= ' - '.$product->label;
+			}
+			if ($mode === 'total' && $quantity > 1) {
+				$label .= ' ('.$quantity.'m)';
+			}
+
+			$result['products'][$productId] = array(
+				'label' => $label,
+				'data' => $data,
+				'kupfergehalt' => $kupfergehalt,
+			);
+		}
+
+		return $result;
+	}
 }
diff --git a/core/modules/modMetallzuschlag.class.php b/core/modules/modMetallzuschlag.class.php
index b074cfa..98279f4 100755
--- a/core/modules/modMetallzuschlag.class.php
+++ b/core/modules/modMetallzuschlag.class.php
@@ -49,7 +49,7 @@ class modMetallzuschlag extends DolibarrModules
 		$this->descriptionlong = "MetallzuschlagDescriptionLong";
 		$this->editor_name = 'Alles Watt laeuft';
 		$this->editor_url = '';
-		$this->version = '1.2';
+		$this->version = '1.3';
 		$this->const_name = 'MAIN_MODULE_'.strtoupper($this->name);
 		$this->picto = 'fa-coins';
 
diff --git a/core/triggers/interface_99_modMetallzuschlag_MetallzuschlagTriggers.class.php b/core/triggers/interface_99_modMetallzuschlag_MetallzuschlagTriggers.class.php
old mode 100644
new mode 100755
diff --git a/langs/de_DE/metallzuschlag.lang b/langs/de_DE/metallzuschlag.lang
old mode 100644
new mode 100755
index a69b384..13be64a
--- a/langs/de_DE/metallzuschlag.lang
+++ b/langs/de_DE/metallzuschlag.lang
@@ -80,3 +80,12 @@ MetallzuschlagChartAL = Aluminium (AL) €/100kg
 MetallzuschlagLast30Days = Letzte 30 Tage
 MetallzuschlagLast90Days = Letzte 90 Tage
 MetallzuschlagLast365Days = Letzte 365 Tage
+
+# Kabel-Diagramm
+MetallzuschlagCableChart = Kupferzuschlag Kabel
+MetallzuschlagSelectCables = Kabel auswählen
+MetallzuschlagAllCables = Alle Kabel
+MetallzuschlagPerMeter = EUR/m
+MetallzuschlagTotalAmount = Gesamtbetrag
+MetallzuschlagPerMeterEUR = Kupferzuschlag (EUR/m)
+MetallzuschlagTotalAmountEUR = Kupferzuschlag (EUR)
diff --git a/langs/en_US/metallzuschlag.lang b/langs/en_US/metallzuschlag.lang
index 01cbc73..b3e7b16 100755
--- a/langs/en_US/metallzuschlag.lang
+++ b/langs/en_US/metallzuschlag.lang
@@ -79,3 +79,12 @@ MetallzuschlagChartAL = Aluminum (AL) €/100kg
 MetallzuschlagLast30Days = Last 30 days
 MetallzuschlagLast90Days = Last 90 days
 MetallzuschlagLast365Days = Last 365 days
+
+# Cable chart
+MetallzuschlagCableChart = Cable copper surcharge
+MetallzuschlagSelectCables = Select cables
+MetallzuschlagAllCables = All cables
+MetallzuschlagPerMeter = EUR/m
+MetallzuschlagTotalAmount = Total amount
+MetallzuschlagPerMeterEUR = Copper surcharge (EUR/m)
+MetallzuschlagTotalAmountEUR = Copper surcharge (EUR)
diff --git a/metallzuschlagindex.php b/metallzuschlagindex.php
index 8fb0f49..a715625 100755
--- a/metallzuschlagindex.php
+++ b/metallzuschlagindex.php
@@ -285,6 +285,157 @@ if (!empty($chartData['labels'])) {
 	print '</script>';
 }
 
+// Kabel-Diagramm: Kupferzuschlag pro Kabel
+$cablesWithKupfer = $api->getProductsWithKupfergehalt();
+
+if (!empty($cablesWithKupfer) && !empty($chartData['labels'])) {
+	print '<br>';
+
+	// Parameter auslesen
+	$cableIds = GETPOST('cable_ids', 'array');
+	$cableMode = GETPOST('cable_mode', 'alpha') ?: 'per_meter';
+
+	// URL-Basis fuer Links
+	$baseUrl = $_SERVER["PHP_SELF"].'?chart_days='.$chartDays;
+
+	// Kabel-Auswahl und Modus-Buttons
+	$cableButtons = '';
+
+	// Modus-Buttons
+	$modePerMeter = ($cableMode == 'per_meter') ? ' butActionActive' : '';
+	$modeTotal = ($cableMode == 'total') ? ' butActionActive' : '';
+	$cableButtons .= '<a class="butAction'.$modePerMeter.' small" href="'.$baseUrl.'&cable_mode=per_meter'.(!empty($cableIds) ? '&cable_ids[]='.implode('&cable_ids[]=', $cableIds) : '').'">'.$langs->trans("MetallzuschlagPerMeter").'</a> ';
+	$cableButtons .= '<a class="butAction'.$modeTotal.' small" href="'.$baseUrl.'&cable_mode=total'.(!empty($cableIds) ? '&cable_ids[]='.implode('&cable_ids[]=', $cableIds) : '').'">'.$langs->trans("MetallzuschlagTotalAmount").'</a>';
+
+	print load_fiche_titre($langs->trans("MetallzuschlagCableChart"), $cableButtons, '');
+
+	// Kabel-Auswahl (Checkboxen)
+	print '<div class="div-table-responsive-no-min" style="margin-bottom: 15px;">';
+	print '<form method="get" action="'.$_SERVER["PHP_SELF"].'">';
+	print '<input type="hidden" name="chart_days" value="'.$chartDays.'">';
+	print '<input type="hidden" name="cable_mode" value="'.$cableMode.'">';
+
+	print '<table class="noborder centpercent">';
+	print '<tr class="liste_titre">';
+	print '<td colspan="4">'.$langs->trans("MetallzuschlagSelectCables").'</td>';
+	print '</tr>';
+	print '<tr class="oddeven">';
+
+	$colCount = 0;
+	foreach ($cablesWithKupfer as $cable) {
+		$checked = (empty($cableIds) || in_array($cable->rowid, $cableIds)) ? ' checked' : '';
+		print '<td style="width: 25%;">';
+		print '<label>';
+		print '<input type="checkbox" name="cable_ids[]" value="'.$cable->rowid.'"'.$checked.'> ';
+		print dol_escape_htmltag($cable->ref);
+		if (!empty($cable->label)) {
+			print ' <span class="opacitymedium">('.dol_trunc($cable->label, 30).')</span>';
+		}
+		print '</label>';
+		print '</td>';
+
+		$colCount++;
+		if ($colCount % 4 == 0) {
+			print '</tr><tr class="oddeven">';
+		}
+	}
+
+	// Leere Zellen auffuellen
+	while ($colCount % 4 != 0) {
+		print '<td></td>';
+		$colCount++;
+	}
+
+	print '</tr>';
+	print '<tr class="oddeven">';
+	print '<td colspan="4">';
+	print '<button type="submit" class="butAction small">'.$langs->trans("Refresh").'</button> ';
+	print '<a class="butAction small" href="'.$baseUrl.'&cable_mode='.$cableMode.'">'.$langs->trans("MetallzuschlagAllCables").'</a>';
+	print '</td>';
+	print '</tr>';
+	print '</table>';
+	print '</form>';
+	print '</div>';
+
+	// Kabel-Chart-Daten holen
+	$cableChartData = $api->getCableChartData($chartDays, $cableIds, $cableMode);
+
+	if (!empty($cableChartData['products'])) {
+		print '<div style="max-width: 100%; height: 400px;">';
+		print '<canvas id="cableChart"></canvas>';
+		print '</div>';
+
+		// Farben fuer Kabel (verschiedene Farben)
+		$colors = array(
+			'#e6194B', '#3cb44b', '#ffe119', '#4363d8', '#f58231',
+			'#911eb4', '#42d4f4', '#f032e6', '#bfef45', '#fabed4',
+			'#469990', '#dcbeff', '#9A6324', '#fffac8', '#800000',
+		);
+
+		// Datasets fuer Chart.js vorbereiten
+		$jsLabels = json_encode($cableChartData['labels']);
+		$datasets = array();
+		$colorIndex = 0;
+
+		foreach ($cableChartData['products'] as $productId => $productData) {
+			$color = $colors[$colorIndex % count($colors)];
+			$datasets[] = array(
+				'label' => $productData['label'],
+				'data' => $productData['data'],
+				'borderColor' => $color,
+				'backgroundColor' => 'transparent',
+				'borderWidth' => 2,
+				'tension' => 0.3,
+				'spanGaps' => true,
+			);
+			$colorIndex++;
+		}
+
+		$jsDatasets = json_encode($datasets);
+		$yAxisLabel = ($cableMode == 'total') ? $langs->trans("MetallzuschlagTotalAmountEUR") : $langs->trans("MetallzuschlagPerMeterEUR");
+
+		print '<script>';
+		print 'document.addEventListener("DOMContentLoaded", function() {';
+		print '  var ctx = document.getElementById("cableChart").getContext("2d");';
+		print '  new Chart(ctx, {';
+		print '    type: "line",';
+		print '    data: {';
+		print '      labels: '.$jsLabels.',';
+		print '      datasets: '.$jsDatasets;
+		print '    },';
+		print '    options: {';
+		print '      responsive: true,';
+		print '      maintainAspectRatio: false,';
+		print '      interaction: { mode: "index", intersect: false },';
+		print '      plugins: {';
+		print '        tooltip: {';
+		print '          callbacks: {';
+		print '            label: function(ctx) {';
+		print '              return ctx.dataset.label + ": " + (ctx.parsed.y !== null ? ctx.parsed.y.toFixed(2) : "-") + " €";';
+		print '            }';
+		print '          }';
+		print '        }';
+		print '      },';
+		print '      scales: {';
+		print '        x: {';
+		print '          ticks: { maxTicksLimit: 12 }';
+		print '        },';
+		print '        y: {';
+		print '          type: "linear",';
+		print '          position: "left",';
+		print '          title: { display: true, text: "'.dol_escape_js($yAxisLabel).'" },';
+		print '          ticks: { callback: function(v) { return v.toFixed(2) + " €"; } }';
+		print '        }';
+		print '      }';
+		print '    }';
+		print '  });';
+		print '});';
+		print '</script>';
+	} else {
+		print '<div class="opacitymedium">'.$langs->trans("MetallzuschlagNoData").'</div>';
+	}
+}
+
 // Verlaufstabelle
 print '<br>';
 print load_fiche_titre($langs->trans("MetallzuschlagHistory"), '', '');
diff --git a/sql/llx_metallzuschlag_history.key.sql b/sql/llx_metallzuschlag_history.key.sql
old mode 100644
new mode 100755
diff --git a/sql/llx_metallzuschlag_history.sql b/sql/llx_metallzuschlag_history.sql
old mode 100644
new mode 100755