+ pnl_expander->add(*(pnl = new TimetablePanel(engineer, train)));
+ pnl->set_visible(false);
+ panels.push_back(pnl);
+ dynamic_cast<GLtk::Toggle *>(get_item(widgets, "tgl_timetable"))->signal_toggled.connect(sigc::bind(sigc::mem_fun(this, &TrainDialog::toggle_panel), pnl));
+