void toggle_solo_isolate ();
void toggle_mute ();
void toggle_region_lock_style ();
+
+ enum LayerOperation {
+ Raise,
+ RaiseToTop,
+ Lower,
+ LowerToBottom
+ };
+
+ void do_layer_operation (LayerOperation);
void raise_region ();
void raise_region_to_top ();
void change_region_layering_order (bool from_context_menu);