+ void toggle (TimeAxisView*);
+ void toggle (const list<TimeAxisView*>&);
+ void toggle (RegionView*);
+ void toggle (std::vector<RegionView*>&);
+ long toggle (nframes_t, nframes_t);
+ void toggle (ARDOUR::AutomationList*);
+ void toggle (boost::shared_ptr<ARDOUR::Playlist>);
+ void toggle (const list<boost::shared_ptr<ARDOUR::Playlist> >&);
+ void toggle (boost::shared_ptr<ARDOUR::Redirect>);
+