Index: /applications/editors/josm/plugins/buildings_tools/build.xml
===================================================================
--- /applications/editors/josm/plugins/buildings_tools/build.xml	(revision 27790)
+++ /applications/editors/josm/plugins/buildings_tools/build.xml	(revision 27791)
@@ -32,5 +32,5 @@
     <property name="commit.message" value="BuildingTools: shortcut changes - binary"/>
     <!-- enter the *lowest* JOSM version this plugin is currently compatible with -->
-    <property name="plugin.main.version" value="4855"/>
+    <property name="plugin.main.version" value="4928"/>
     <!--
       ************************************************
Index: /applications/editors/josm/plugins/buildings_tools/src/buildings_tools/BuildingSizeAction.java
===================================================================
--- /applications/editors/josm/plugins/buildings_tools/src/buildings_tools/BuildingSizeAction.java	(revision 27790)
+++ /applications/editors/josm/plugins/buildings_tools/src/buildings_tools/BuildingSizeAction.java	(revision 27791)
@@ -14,6 +14,7 @@
     public BuildingSizeAction() {
         super(tr("Set buildings size"), "mapmode/building", tr("Set buildings size"),
-                Shortcut.registerShortcut("edit:buildingsdialog", tr("Edit: {0}", tr("Set buildings size")), KeyEvent.VK_B, Shortcut.GROUP_EDIT, KeyEvent.CTRL_DOWN_MASK)
-		,true);
+                Shortcut.registerShortcut("edit:buildingsdialog", tr("Edit: {0}", tr("Set buildings size")),
+                KeyEvent.VK_B, Shortcut.GROUP_EDIT+Shortcut.GROUPS_ALT1),
+                true);
     }