<enabledWhen>
   <with
     variable="selection">
     <iterate
            ifEmpty="false">
            <instanceof
                    value="com.xxx.automation.touchstone.model.GUIObject">
            </instanceof>
     </iterate>
     <test
            forcePluginActivation="true"
            property="com.xxx.automation.touchstone.testers.GUIObjects.canExpandAll"
            value="true">
     </test>
   </with>
</enabledWhen>