Index: src/gnome/glade/register.glade
===================================================================
--- src/gnome/glade/register.glade	(revision 17315)
+++ src/gnome/glade/register.glade	(working copy)
@@ -1087,6 +1088,7 @@
       <property name="use_underline">True</property>
       <property name="active">False</property>
       <signal name="activate" handler="gnc_split_reg_expand_trans_menu_cb"/>
+      <accelerator key="m" modifiers="GDK_CONTROL_MASK" signal="activate"/>
     </widget>
   </child>
 
