void insert_action(Gtk::TreeRow row,etl::handle<synfigapp::Action::Undoable> action, bool is_active=true, bool is_undo=true, bool is_redo=false);
void insert_action(Gtk::TreeRow row,etl::handle<synfigapp::Action::Undoable> action, bool is_active=true, bool is_undo=true, bool is_redo=false);