Handles a selection menu command.

The unit classifier.The board classifier.The collection of elements enclosed in the selection box.The selection box coordinates.The selection menu position.The selection 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:defineSelectionMenu">defineSelectionMenu</q> != null </td></tr></table> <h2>Behavior</h2> The rule is invoked with both the classifying parameters that were used for defining the selection menu (see <q ref="core.gml2:defineSelectionMenu">defineSelectionMenu</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.