--- gigedit/trunk/src/gigedit/regionchooser.cpp	2014/06/16 14:54:06	2640
+++ gigedit/trunk/src/gigedit/regionchooser.cpp	2014/06/16 15:24:54	2641
@@ -538,6 +538,12 @@
         }
     }
 
+    // left mouse button double click
+    if (event->type == GDK_2BUTTON_PRESS && event->button == 1) {
+        // show dimension manager dialog for this region
+        manage_dimensions();
+    }
+
     if (event->y >= REGION_BLOCK_HEIGHT) return true;
     if (event->type == GDK_BUTTON_PRESS && event->button == 3) {
         gig::Region* r = get_region(k);