diff --git a/gtk2_ardour/midi_view.cc b/gtk2_ardour/midi_view.cc
index 1b09892b38..01f9014f64 100644
--- a/gtk2_ardour/midi_view.cc
+++ b/gtk2_ardour/midi_view.cc
@@ -339,6 +339,12 @@ MidiView::set_show_source (bool yn)
 	_show_source = yn;
 }
 
+void
+MidiView::set_on_timeline (bool yn)
+{
+	_on_timeline = yn;
+}
+
 void
 MidiView::set_region (std::shared_ptr<MidiRegion> mr)
 {
diff --git a/gtk2_ardour/midi_view.h b/gtk2_ardour/midi_view.h
index 8c6cf3411f..6b47a76878 100644
--- a/gtk2_ardour/midi_view.h
+++ b/gtk2_ardour/midi_view.h
@@ -147,6 +147,8 @@ class MidiView : public virtual sigc::trackable, public LineMerger
 
 	void set_show_source (bool yn);
 	bool show_source () const { return _show_source; }
+	bool on_timeline () const { return _on_timeline; }
+	void set_on_timeline (bool yn);
 
 	NoteBase* add_note(const std::shared_ptr<NoteType> note, bool visible);