CellRendererText* name_cell = dynamic_cast<CellRendererText*>(_display.get_column_cell_renderer (1));
name_cell->property_editable() = true;
name_cell->signal_edited().connect (sigc::mem_fun (*this, &EditorRouteGroups::name_edit));
CellRendererText* name_cell = dynamic_cast<CellRendererText*>(_display.get_column_cell_renderer (1));
name_cell->property_editable() = true;
name_cell->signal_edited().connect (sigc::mem_fun (*this, &EditorRouteGroups::name_edit));