</reference>
</activeWhen>
</handler>
+ <handler
+ class="eu.etaxonomy.taxeditor.handler.defaultHandler.OpenReferencingObjectsView"
+ commandId="eu.etaxonomy.taxeditor.openReferencingObjectsView">
+ <activeWhen>
+ <with
+ variable="activePartId">
+ <equals
+ value="eu.etaxonomy.taxeditor.navigation.navigator">
+ </equals>
+ </with>
+ </activeWhen>
+ </handler>
</extension>