diff --git a/gtk2_ardour/route_ui.cc b/gtk2_ardour/route_ui.cc
index 577dc1ea31..1ac651308a 100644
--- a/gtk2_ardour/route_ui.cc
+++ b/gtk2_ardour/route_ui.cc
@@ -543,16 +543,19 @@ RouteUI::create_sends (Placement p)
 void
 RouteUI::set_sends_gain_from_track ()
 {
+	_session.globally_set_send_gains_from_track (_route);
 }
 
 void
 RouteUI::set_sends_gain_to_zero ()
 {
+	_session.globally_set_send_gains_to_zero (_route);
 }
 
 void
 RouteUI::set_sends_gain_to_unity ()
 {
+	_session.globally_set_send_gains_to_unity (_route);
 }
 
 bool
diff --git a/libs/ardour/ardour/session.h b/libs/ardour/ardour/session.h
index 03112fb022..8f70b4723e 100644
--- a/libs/ardour/ardour/session.h
+++ b/libs/ardour/ardour/session.h
@@ -741,6 +741,9 @@ class Session : public PBD::StatefulDestructible, public boost::noncopyable
 	boost::shared_ptr<Route> master_out() const { return _master_out; }
 
 	void globally_add_internal_sends (boost::shared_ptr<Route> dest, Placement p);
+	void globally_set_send_gains_from_track (boost::shared_ptr<Route> dest);
+	void globally_set_send_gains_to_zero (boost::shared_ptr<Route> dest);
+	void globally_set_send_gains_to_unity (boost::shared_ptr<Route> dest);
 	void add_internal_sends (boost::shared_ptr<Route> dest, Placement p, boost::shared_ptr<RouteList> senders);
 
 	static void set_disable_all_loaded_plugins (bool yn) {
diff --git a/libs/ardour/session.cc b/libs/ardour/session.cc
index 4ed908dc7d..9eb090f02a 100644
--- a/libs/ardour/session.cc
+++ b/libs/ardour/session.cc
@@ -43,6 +43,7 @@
 #include "pbd/stacktrace.h"
 #include "pbd/file_utils.h"
 
+#include "ardour/amp.h"
 #include "ardour/analyser.h"
 #include "ardour/audio_buffer.h"
 #include "ardour/audio_diskstream.h"
@@ -2166,6 +2167,57 @@ Session::add_routes (RouteList& new_routes, bool save)
 	RouteAdded (new_routes); /* EMIT SIGNAL */
 }
 
+void
+Session::globally_set_send_gains_to_zero (boost::shared_ptr<Route> dest)
+{
+	boost::shared_ptr<RouteList> r = routes.reader ();
+	boost::shared_ptr<Send> s;
+
+	/* only tracks */
+
+	for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
+		if (boost::dynamic_pointer_cast<Track>(*i)) {
+			if ((s = (*i)->internal_send_for (dest)) != 0) {
+				s->amp()->gain_control()->set_value (0.0);
+			}
+		}
+	}
+}
+
+void
+Session::globally_set_send_gains_to_unity (boost::shared_ptr<Route> dest)
+{
+	boost::shared_ptr<RouteList> r = routes.reader ();
+	boost::shared_ptr<Send> s;
+
+	/* only tracks */
+
+	for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
+		if (boost::dynamic_pointer_cast<Track>(*i)) {
+			if ((s = (*i)->internal_send_for (dest)) != 0) {
+				s->amp()->gain_control()->set_value (1.0);
+			}
+		}
+	}
+}
+
+void
+Session::globally_set_send_gains_from_track(boost::shared_ptr<Route> dest)
+{
+	boost::shared_ptr<RouteList> r = routes.reader ();
+	boost::shared_ptr<Send> s;
+
+	/* only tracks */
+
+	for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
+		if (boost::dynamic_pointer_cast<Track>(*i)) {
+			if ((s = (*i)->internal_send_for (dest)) != 0) {
+				s->amp()->gain_control()->set_value ((*i)->gain_control()->get_value());
+			}
+		}
+	}
+}
+
 void
 Session::globally_add_internal_sends (boost::shared_ptr<Route> dest, Placement p)
 {
@@ -2183,6 +2235,7 @@ Session::globally_add_internal_sends (boost::shared_ptr<Route> dest, Placement p
 	add_internal_sends (dest, p, t);
 }
 
+
 void
 Session::add_internal_sends (boost::shared_ptr<Route> dest, Placement p, boost::shared_ptr<RouteList> senders)
 {