diff --git a/gtk2_ardour/cue_editor.cc b/gtk2_ardour/cue_editor.cc
index 33d867160c..9926c90682 100644
--- a/gtk2_ardour/cue_editor.cc
+++ b/gtk2_ardour/cue_editor.cc
@@ -258,12 +258,6 @@ CueEditor::history_changed ()
 	update_undo_redo_actions (_history);
 }
 
-std::pair<Temporal::timepos_t,Temporal::timepos_t>
-CueEditor::max_zoom_extent() const
-{
-	return std::make_pair (Temporal::timepos_t (Temporal::Beats()), Temporal::timepos_t (Temporal::Beats (32, 0)));
-}
-
 Temporal::timepos_t
 CueEditor::_get_preferred_edit_position (Editing::EditIgnoreOption ignore, bool from_context_menu, bool from_outside_canvas)
 {
diff --git a/gtk2_ardour/cue_editor.h b/gtk2_ardour/cue_editor.h
index 4e9a139e4a..5375d905b3 100644
--- a/gtk2_ardour/cue_editor.h
+++ b/gtk2_ardour/cue_editor.h
@@ -104,8 +104,6 @@ class CueEditor : public EditingContext, public PBD::HistoryOwner, public sigc::
 	void do_undo (uint32_t n);
 	void do_redo (uint32_t n);
 
-	std::pair<Temporal::timepos_t,Temporal::timepos_t> max_zoom_extent() const;
-
 	Temporal::timepos_t _get_preferred_edit_position (Editing::EditIgnoreOption, bool use_context_click, bool from_outside_canvas);
 };
 
diff --git a/gtk2_ardour/midi_cue_editor.cc b/gtk2_ardour/midi_cue_editor.cc
index f81a5725bc..dbb7f3d2b4 100644
--- a/gtk2_ardour/midi_cue_editor.cc
+++ b/gtk2_ardour/midi_cue_editor.cc
@@ -2054,3 +2054,23 @@ MidiCueEditor::build_zoom_focus_menu ()
 	zoom_focus_selector.set_sizing_texts (zoom_focus_strings);
 }
 
+
+std::pair<Temporal::timepos_t,Temporal::timepos_t>
+MidiCueEditor::max_zoom_extent() const
+{
+	if (view && view->midi_region()) {
+		return std::make_pair (Temporal::timepos_t (Temporal::Beats()), Temporal::timepos_t (view->midi_region()->midi_source()->length().beats()));
+	}
+
+	return std::make_pair (Temporal::timepos_t (Temporal::Beats()), Temporal::timepos_t (Temporal::Beats (32, 0)));
+}
+
+void
+MidiCueEditor::full_zoom_clicked()
+{
+	/* XXXX NEED LOCAL TEMPO MAP */
+
+	std::pair<Temporal::timepos_t,Temporal::timepos_t> dur (max_zoom_extent());
+	samplecnt_t s = dur.second.samples() - dur.first.samples();
+	reposition_and_zoom (0,  (s / (double) _visible_canvas_width));
+}
diff --git a/gtk2_ardour/midi_cue_editor.h b/gtk2_ardour/midi_cue_editor.h
index 437e8d84a3..7761653eb2 100644
--- a/gtk2_ardour/midi_cue_editor.h
+++ b/gtk2_ardour/midi_cue_editor.h
@@ -124,6 +124,8 @@ class MidiCueEditor : public CueEditor
 	void set_trigger_length (Temporal::timecnt_t const &);
 	void set_trigger_bounds (Temporal::timepos_t const &, Temporal::timepos_t const &);
 
+	void full_zoom_clicked();
+
   protected:
 	void register_actions ();
 
@@ -264,6 +266,6 @@ class MidiCueEditor : public CueEditor
 	void automation_state_changed ();
 
 	void build_zoom_focus_menu ();
+
+	std::pair<Temporal::timepos_t,Temporal::timepos_t> max_zoom_extent() const;
 };
-
-