code: def register_actions(self, shortcut_manager):
          
          shortcut_manager.add_callback_for_action("delete", self.trans_list_ctrl.remove_action_callback)
          shortcut_manager.add_callback_for_action("add", self.trans_list_ctrl.add_action_callback)
docs: Register callback methods for triggered actions
  
          :param rafcon.gui.shortcut_manager.ShortcutManager shortcut_manager: