Return a list of additional actions you want to provide for the menu
        of the reftrack.

        E.e. you want to have a menu entry, that will select the entity in your programm.

        :param reftrack: the reftrack to return the actions for
        :type reftrack: :class:`Reftrack`
        :returns: A list of :class:`ReftrackAction`
        :rtype: list
        :raises: None

def get_additional_actions(self, reftrack):
        """Return a list of additional actions you want to provide for the menu
        of the reftrack.

        E.e. you want to have a menu entry, that will select the entity in your programm.

        :param reftrack: the reftrack to return the actions for
        :type reftrack: :class:`Reftrack`
        :returns: A list of :class:`ReftrackAction`
        :rtype: list
        :raises: None
        """
        refobj = reftrack.get_refobj()
        select_dp_action = ReftrackAction("Select Nodes", partial(select_dp_nodes, reftrack=reftrack), enabled=bool(refobj))
        select_dag_action = ReftrackAction("Select DAG", partial(select_dag_nodes, reftrack=reftrack), enabled=bool(refobj))
        return [select_dp_action, select_dag_action]