Adding new items to the model can now be made undone/redone.

genericcore.h

@@ -22,14 +22,14 @@ class GenericCore : public QObject {
   bool isApplicationUpdateAvailable();
   void triggerApplicationUpdate();
 
-  std::shared_ptr<QUndoStack> getModUndoStack() const;
+  QUndoStack* getModelUndoStack() const;
   std::shared_ptr<TableModel> getModel() const;
 
  signals:
   void displayStatusMessage(QString message);
 
  private:
-  std::shared_ptr<QUndoStack> m_modelUndoStack;
+  QUndoStack* m_modelUndoStack;
   std::shared_ptr<TableModel> m_mainModel;
 
   void setupModels();