diff --git a/gtk2_ardour/route_time_axis.cc b/gtk2_ardour/route_time_axis.cc
index 0aea8e73e7..513c2f007a 100644
--- a/gtk2_ardour/route_time_axis.cc
+++ b/gtk2_ardour/route_time_axis.cc
@@ -847,7 +847,7 @@ RouteTimeAxisView::build_display_menu ()
 	} else {
 		i->set_active (false);
 	}
-	// i->signal_activate().connect (sigc::bind (sigc::mem_fun (*this, &RouteUI::set_route_time_domain), Temporal::AudioTime, true));
+	i->signal_activate().connect (sigc::bind (sigc::mem_fun (*this, &RouteUI::set_time_domain), Temporal::AudioTime, true));
 	time_domain_items.push_back (CheckMenuElem (_("Musical (beat) time")));
 	i = dynamic_cast<Gtk::CheckMenuItem *> (&time_domain_items.back());
 	if (_route->has_own_time_domain() && _route->time_domain() == Temporal::BeatTime) {
@@ -855,7 +855,7 @@ RouteTimeAxisView::build_display_menu ()
 	} else {
 		i->set_active (false);
 	}
-	// i->signal_activate().connect (sigc::bind (sigc::mem_fun (*this, &RouteUI::set_route_time_domain), Temporal::BeatTime, true));
+	i->signal_activate().connect (sigc::bind (sigc::mem_fun (*this, &RouteUI::set_time_domain), Temporal::BeatTime, true));
 	time_domain_items.push_back (CheckMenuElem (_("Follow Session time domain")));
 	i = dynamic_cast<Gtk::CheckMenuItem *> (&time_domain_items.back());
 	if (!_route->has_own_time_domain()) {
@@ -863,7 +863,7 @@ RouteTimeAxisView::build_display_menu ()
 	} else {
 		i->set_active (false);
 	}
-	// i->signal_activate().connect (sigc::bind (sigc::mem_fun (*this, &RouteUI::clear_route_time_domain), Temporal::BeatTime, true));
+	i->signal_activate().connect (sigc::bind (sigc::mem_fun (*this, &RouteUI::clear_time_domain), true));
 	items.push_back (MenuElem (_("Time Domain"), *time_domain_menu));
 
 	items.push_back (CheckMenuElem (_("Active")));
diff --git a/gtk2_ardour/route_ui.cc b/gtk2_ardour/route_ui.cc
index 56feb1445e..e67148334e 100644
--- a/gtk2_ardour/route_ui.cc
+++ b/gtk2_ardour/route_ui.cc
@@ -2844,3 +2844,27 @@ RouteUI::rename_current_playlist ()
 		}
 	}
 }
+
+void
+RouteUI::set_time_domain (Temporal::TimeDomain td, bool apply_to_selection)
+{
+	if (apply_to_selection) {
+		std::cerr << "change route TD to " << td << std::endl;
+		ARDOUR_UI::instance()->the_editor().get_selection().tracks.foreach_route_ui (boost::bind (&RouteUI::set_time_domain, _1, td, false));
+	} else {
+		route()->set_time_domain (td);
+	}
+}
+
+
+void
+RouteUI::clear_time_domain (bool apply_to_selection)
+{
+	if (apply_to_selection) {
+		ARDOUR_UI::instance()->the_editor().get_selection().tracks.foreach_route_ui (boost::bind (&RouteUI::clear_time_domain, _1, false));
+	} else {
+		route()->clear_time_domain ();
+	}
+
+}
+
diff --git a/gtk2_ardour/route_ui.h b/gtk2_ardour/route_ui.h
index 23d5a81ab1..88926ac700 100644
--- a/gtk2_ardour/route_ui.h
+++ b/gtk2_ardour/route_ui.h
@@ -159,6 +159,9 @@ public:
 	void set_disk_io_point (ARDOUR::DiskIOPoint);
 	void fan_out (bool to_busses = true, bool group = true);
 
+	void set_time_domain (Temporal::TimeDomain, bool);
+	void clear_time_domain (bool);
+
 	/* The editor calls these when mapping an operation across multiple tracks */
 	void use_new_playlist (std::string name, std::string group_id, std::vector<std::shared_ptr<ARDOUR::Playlist> > const&, bool copy);
 	void clear_playlist ();