Handles a context menu command.

The unit classifier.The board classifier.The element classifier. This is the element instance on which the menu command was invoked.The context menu position.The dangling menu command.Returns the rule's success/failure status.<h2>Dependencies</h2><table class="WHITE" style="width:auto; margin-top:0" cellspacing="1"><tr><td class="H V"><i>pre-condition:</i> </td><td class=H><q ref="core.gml2:defineContextMenu">defineContextMenu</q> != null </td></tr></table> <h2>Behavior</h2> The rule is invoked with both the classifying parameters that were used for defining the context menu (see <q ref="core.gml2:defineContextMenu">defineContextMenu</q>) as well as the menu command selected by the user. The default behavior is to execute the selected command as a standard command signal (see <q ref="core.lib:Global!SIGNAL">SIGNAL</q> macro). The behavior can be extended to support custom commands that depend also on the classifying parameters.(c) SAP AG 2003-2006. All rights reserved.