diff --git a/src/components/FlowEditor/editor/Automation2FlowEditor.tsx b/src/components/FlowEditor/editor/Automation2FlowEditor.tsx
index 8a9a6e2..d250b94 100644
--- a/src/components/FlowEditor/editor/Automation2FlowEditor.tsx
+++ b/src/components/FlowEditor/editor/Automation2FlowEditor.tsx
@@ -854,7 +854,10 @@ export const Automation2FlowEditor: React.FC<Automation2FlowEditorProps> = ({ in
     <div className={styles.container}>
       {/* Left panel: Workspace (Chats / Dateien / Quellen) */}
       {leftPanelOpen && (<>
-        <div style={{ width: leftPanelWidth, flexShrink: 0, display: 'flex', flexDirection: 'column', overflow: 'hidden', background: 'var(--bg-primary, #fff)' }}>
+        <div
+          data-suppress-flow-node-hotkeys=""
+          style={{ width: leftPanelWidth, flexShrink: 0, display: 'flex', flexDirection: 'column', overflow: 'hidden', background: 'var(--bg-primary, #fff)' }}
+        >
           <div className={styles.rightTabBar}>
             {(['ai', 'chats', 'files', 'sources'] as const).map((tab) => (
               <button
@@ -996,7 +999,7 @@ export const Automation2FlowEditor: React.FC<Automation2FlowEditorProps> = ({ in
             />
           </div>
           {configurableSelected && selectedNode && (
-            <div className={styles.nodeConfigPanelWrap}>
+            <div className={styles.nodeConfigPanelWrap} data-suppress-flow-node-hotkeys="">
             <Automation2DataFlowProvider
               node={selectedNode}
               nodes={canvasNodes}
@@ -1029,7 +1032,10 @@ export const Automation2FlowEditor: React.FC<Automation2FlowEditorProps> = ({ in
 
       {/* Right panel: Nodes + Tracing tabs */}
       <div className={styles.resizeDivider} onMouseDown={(e) => _startResize('right', e)} />
-      <div style={{ width: sidebarWidth, flexShrink: 0, display: 'flex', flexDirection: 'column', overflow: 'hidden', background: 'var(--bg-secondary, #f8f9fa)' }}>
+      <div
+        data-suppress-flow-node-hotkeys=""
+        style={{ width: sidebarWidth, flexShrink: 0, display: 'flex', flexDirection: 'column', overflow: 'hidden', background: 'var(--bg-secondary, #f8f9fa)' }}
+      >
         <div className={styles.rightTabBar}>
           <button
             className={`${styles.rightTab} ${rightTab === 'nodes' ? styles.rightTabActive : ''}`}
diff --git a/src/components/FlowEditor/editor/CanvasHeader.tsx b/src/components/FlowEditor/editor/CanvasHeader.tsx
index aafccbb..d4e6de5 100644
--- a/src/components/FlowEditor/editor/CanvasHeader.tsx
+++ b/src/components/FlowEditor/editor/CanvasHeader.tsx
@@ -218,7 +218,7 @@ export const CanvasHeader: React.FC<CanvasHeaderProps> = ({
     !!canvasEdit && canvasEdit.selectedNodeCount === 1 && !canvasEdit.connectionSelected;
 
   return (
-    <div className={styles.canvasHeader}>
+    <div className={styles.canvasHeader} data-suppress-flow-node-hotkeys="">
       <div
         className={styles.canvasHeaderToolbar}
         role="toolbar"
@@ -518,16 +518,6 @@ export const CanvasHeader: React.FC<CanvasHeaderProps> = ({
           >
             <HiOutlineDocumentDuplicate size={18} strokeWidth={2} aria-hidden />
           </button>
-          <button
-            type="button"
-            className={styles.canvasHeaderGhostIconBtn}
-            aria-pressed={canvasEdit.connectionToolActive}
-            onClick={canvasEdit.onToggleConnectionTool}
-            title={t('Verbindungen zeichnen')}
-            aria-label={t('Verbindungen zeichnen')}
-          >
-            <HiOutlineArrowLongRight size={18} strokeWidth={2} aria-hidden />
-          </button>
           <button
             type="button"
             className={styles.canvasHeaderGhostIconBtn}
diff --git a/src/components/FlowEditor/editor/FlowCanvas.tsx b/src/components/FlowEditor/editor/FlowCanvas.tsx
index 433f85c..29bbbbb 100644
--- a/src/components/FlowEditor/editor/FlowCanvas.tsx
+++ b/src/components/FlowEditor/editor/FlowCanvas.tsx
@@ -119,6 +119,28 @@ const NODE_HEIGHT = 72;
 export const FLOW_CANVAS_MIN_ZOOM = 0.25;
 export const FLOW_CANVAS_MAX_ZOOM = 4;
 
+function deepCloneCanvasNode(node: CanvasNode): CanvasNode {
+  return {
+    ...node,
+    parameters: node.parameters ? { ...node.parameters } : {},
+    inputPorts: node.inputPorts?.map((p) => ({ ...p })),
+    outputPorts: node.outputPorts?.map((p) => ({ ...p })),
+  };
+}
+
+/** Konfig-/Sidebar-/Header blenden Knoten-Duplizieren per Strg+C aus (normales Kopieren). */
+const FLOW_HOTKEY_SHIELD_SELECTOR = '[data-suppress-flow-node-hotkeys]';
+
+function isDuplicateNodeHotkeyShielded(el: HTMLElement): boolean {
+  return el.closest(FLOW_HOTKEY_SHIELD_SELECTOR) != null;
+}
+
+function isKeyboardTypingTarget(el: HTMLElement): boolean {
+  if (el.isContentEditable) return true;
+  const t = el.tagName;
+  return t === 'INPUT' || t === 'TEXTAREA' || t === 'SELECT';
+}
+
 export interface FlowCanvasViewportEditState {
   zoom: number;
   selectedNodeCount: number;
@@ -818,6 +840,9 @@ export const FlowCanvas = forwardRef<FlowCanvasHandle, FlowCanvasProps>(function
     onHistoryCheckpointRef.current?.();
   }, []);
 
+  const nodesRef = useRef(nodes);
+  nodesRef.current = nodes;
+
   useEffect(() => {
     onViewportEditState?.({
       zoom,
@@ -925,11 +950,10 @@ export const FlowCanvas = forwardRef<FlowCanvasHandle, FlowCanvasProps>(function
         if (!node) return;
         const newId = `n_${Date.now()}_${Math.random().toString(36).slice(2, 9)}`;
         const clone: CanvasNode = {
-          ...node,
+          ...deepCloneCanvasNode(node),
           id: newId,
           x: node.x + 40,
           y: node.y + 40,
-          parameters: node.parameters ? { ...node.parameters } : {},
         };
         onNodesChange([...nodes, clone]);
         setSelectedNodeIds(new Set([newId]));
@@ -1266,6 +1290,10 @@ export const FlowCanvas = forwardRef<FlowCanvasHandle, FlowCanvasProps>(function
         startClientY: e.clientY,
         nodesInitial,
       });
+
+      queueMicrotask(() => {
+        containerRef.current?.focus({ preventScroll: true });
+      });
     },
     [nodes, selectedNodeIds]
   );
@@ -1532,8 +1560,35 @@ export const FlowCanvas = forwardRef<FlowCanvasHandle, FlowCanvasProps>(function
 
   React.useEffect(() => {
     const onKeyDown = (e: KeyboardEvent) => {
-      const target = e.target as HTMLElement;
-      if (target.tagName === 'INPUT' || target.tagName === 'TEXTAREA') return;
+      const target = e.target as HTMLElement | null;
+      if (!target) return;
+
+      const mod = e.ctrlKey || e.metaKey;
+      if (mod && e.code === 'KeyC') {
+        if (selectedConnectionId || selectedStickyId || !selectedNodeId) return;
+        if (isDuplicateNodeHotkeyShielded(target)) return;
+        const node = nodesRef.current.find((n) => n.id === selectedNodeId);
+        if (!node) return;
+        e.preventDefault();
+        e.stopPropagation();
+        const newId = `n_${Date.now()}_${Math.random().toString(36).slice(2, 9)}`;
+        const clone: CanvasNode = {
+          ...deepCloneCanvasNode(node),
+          id: newId,
+          x: node.x + 40,
+          y: node.y + 40,
+        };
+        onNodesChange([...nodesRef.current, clone]);
+        setSelectedConnectionId(null);
+        setSelectedNodeIds(new Set([newId]));
+        setSelectedStickyId(null);
+        setEditingNodeId(null);
+        setEditingField(null);
+        emitHistoryCheckpoint();
+        return;
+      }
+
+      if (isKeyboardTypingTarget(target)) return;
       if (e.key === 'Escape') {
         setConnectingFrom(null);
         setDragPos(null);
@@ -1557,13 +1612,16 @@ export const FlowCanvas = forwardRef<FlowCanvasHandle, FlowCanvasProps>(function
         }
       }
     };
-    window.addEventListener('keydown', onKeyDown);
-    return () => window.removeEventListener('keydown', onKeyDown);
+    window.addEventListener('keydown', onKeyDown, true);
+    return () => window.removeEventListener('keydown', onKeyDown, true);
   }, [
     handleDeleteNode,
     handleDeleteConnection,
     handleDeleteSelectedStickyNote,
+    emitHistoryCheckpoint,
+    onNodesChange,
     selectedNodeIds.size,
+    selectedNodeId,
     selectedConnectionId,
     selectedStickyId,
   ]);
@@ -1977,6 +2035,7 @@ export const FlowCanvas = forwardRef<FlowCanvasHandle, FlowCanvasProps>(function
                   <input
                     type="text"
                     className={styles.canvasNodeInput}
+                    data-suppress-flow-node-hotkeys=""
                     value={node.title ?? displayTitle}
                     autoFocus
                     onClick={(e) => e.stopPropagation()}
@@ -2084,6 +2143,7 @@ export const FlowCanvas = forwardRef<FlowCanvasHandle, FlowCanvasProps>(function
               <textarea
                 ref={stickyTextareaRef}
                 className={styles.canvasStickyNoteTextarea}
+                data-suppress-flow-node-hotkeys=""
                 value={sn.text}
                 placeholder={t('Kommentar eingeben …')}
                 spellCheck