diff --git a/DocuMentor.wxs b/DocuMentor.wxs
index 960eced..ff33c83 100644
--- a/DocuMentor.wxs
+++ b/DocuMentor.wxs
@@ -4,7 +4,7 @@
   <!-- Paket-Definition (ersetzt Product in v4) -->
   <Package 
     Name="DocuMentor" 
-    Version="1.2.2"
+    Version="1.2.3"
     Manufacturer="Vitali Graf / Software- und Datenbankentwicklung" 
     UpgradeCode="F498B66C-726D-44AA-95F4-CB4FBDCEF26E"
     Language="1031"
diff --git a/THIRD_PARTY_LICENSES.txt b/THIRD_PARTY_LICENSES.txt
index 5286163..ba557ea 100644
--- a/THIRD_PARTY_LICENSES.txt
+++ b/THIRD_PARTY_LICENSES.txt
@@ -253,5 +253,5 @@ HINWEISE
 
 ================================================================================
 Stand: März 2026
-Erstellt für: DocuMentor v1.2.2
+Erstellt für: DocuMentor v1.2.3
 ================================================================================
diff --git a/installer.iss b/installer.iss
index 05f4397..5612bce 100644
--- a/installer.iss
+++ b/installer.iss
@@ -10,7 +10,7 @@
 ; Build-Befehl: iscc installer.iss
 
 #define MyAppName "DocuMentor"
-#define MyAppVersion "1.2.2"
+#define MyAppVersion "1.2.3"
 #define MyAppPublisher "Ihr Name/Organisation"
 #define MyAppURL "https://github.com/yourusername/xsl-validator"
 #define MyAppExeName "DocuMentor.exe"
diff --git a/pyproject.toml b/pyproject.toml
index 5c78204..6b17340 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "DocuMentor"
-version = "1.2.2"
+version = "1.2.3"
 description = "Professionelle XSL-Transformations-Verwaltung und PDF-Generierung"
 readme = "README.md"
 license = {text = "MIT"}
diff --git a/src/ui/XslDependencyDialog.py b/src/ui/XslDependencyDialog.py
index 8e35666..70606ad 100644
--- a/src/ui/XslDependencyDialog.py
+++ b/src/ui/XslDependencyDialog.py
@@ -638,6 +638,7 @@ class XslDependencyDialog(QDialog):
         self._temp_html_file.write(html)
         self._temp_html_file.close()
         self._web_view.loadFinished.connect(self._on_graph_load_finished)
+        self._web_view.page().titleChanged.connect(self._on_graph_title_changed)
         self._web_view.setUrl(QUrl.fromLocalFile(self._temp_html_file.name))
 
     def _on_graph_load_finished(self, ok: bool):
@@ -648,6 +649,13 @@ class XslDependencyDialog(QDialog):
         else:
             logger.error("Netzwerkgraph konnte nicht geladen werden")
 
+    def _on_graph_title_changed(self, title: str):
+        """Reagiert auf Doppelklick im Netzwerkgraph: Kopiert Knotenname ins Suchfeld."""
+        prefix = "nodeSearch:"
+        if title.startswith(prefix):
+            node_label = title[len(prefix):]
+            self.ui.searchEdit.setText(node_label)
+
     def _build_graph_data(self) -> tuple[str, str]:
         """
         Konvertiert den Abhängigkeitsgraph in vis.js-kompatible JSON-Strukturen.
@@ -866,6 +874,16 @@ class XslDependencyDialog(QDialog):
         edges.update(edgeUpdates);
     }});
 
+    network.on("doubleClick", function(params) {{
+        if (params.nodes.length > 0) {{
+            var nodeId = params.nodes[0];
+            var node = nodes.get(nodeId);
+            if (node) {{
+                document.title = "nodeSearch:" + node.label;
+            }}
+        }}
+    }});
+
     network.on("deselectNode", function() {{
         // Alle Knoten zurücksetzen
         var updates = [];
diff --git a/uv.lock b/uv.lock
index 9317351..49058d8 100644
--- a/uv.lock
+++ b/uv.lock
@@ -34,7 +34,7 @@ wheels = [
 
 [[package]]
 name = "documentor"
-version = "1.2.2"
+version = "1.2.3"
 source = { virtual = "." }
 dependencies = [
     { name = "connectorx" },