diff --git a/lib/controller.py b/lib/controller.py
index 11bba1b..2e0bf3b 100644
--- a/lib/controller.py
+++ b/lib/controller.py
@@ -158,6 +158,10 @@ class Controller(Observer):
     def get_all_gui_data(self):
         return self._model.get_all_gui_data()
 
+    def set_widget_status(self, widgetname, status):
+        #self._view.set_widget_status(widgetname, status)
+        pass
+
     def callback(self, key, value):
         if not self._model:
             raise Exception("no model yet added")
@@ -194,6 +198,7 @@ class Controller(Observer):
         if pdm_kategorie_neu == "Einzelteil" and not (aus_halbzeug == True or neuaufbau == True):
             newpath =  self._view.suche_3d()
             self._model.set_gui_data('model3d_neu', newpath)
+            self._model.set_gui_data('cb_3Dmodel_neu', '')