docs: def register_actions(self, shortcut_manager):
          """Register callback methods for triggered actions
  
          :param rafcon.gui.shortcut_manager.ShortcutManager shortcut_manager: Shortcut Manager Object holding mappings
              between shortcuts and actions.
          """
          shortcut_manager.add_callback_for_action("delete", self.remove_action_callback)
          shortcut_manager.add_callback_for_action("add", self.add_action_callback)
          shortcut_manager.add_callback_for_action("copy", self.copy_action_callback)
          shortcut_manager.add_callback_for_action("cut", self.cut_action_callback)
          shortcut_manager.add_callback_for_action("paste", self.paste_action_callback)