+ } else if (p == "sync-source") {
+
+ /* app parameter (RC config) */
+
+ if (_session) {
+ if (!_session->config.get_external_sync()) {
+ sync_button.set_text (S_("SyncSource|Int."));
+ } else {
+ sync_button.set_text (TransportMasterManager::instance().current()->display_name());
+ }
+ } else {
+ /* changing sync source without a session is unlikely/impossible , except during startup */
+ sync_button.set_text (TransportMasterManager::instance().current()->display_name());
+ }
+