int have_mwindow_lock = mwindow->gui->get_window_lock();
if( have_mwindow_lock ) mwindow->gui->unlock_window();
stop_transport("EditPanel::prev_label 1");
mwindow->gui->lock_window("EditPanel::prev_label 2");
int have_mwindow_lock = mwindow->gui->get_window_lock();
if( have_mwindow_lock ) mwindow->gui->unlock_window();
stop_transport("EditPanel::prev_label 1");
mwindow->gui->lock_window("EditPanel::prev_label 2");