SoapUI NG - how to add item to project context menu

Hi,

I would like to add a new item to the project's context menu. I've created the class and the custom-actions.xml file. The new context menu item appears on the "Projects" tab, but not on the "SoapUI NG" tab (see the attached screenshots). How could I achieve to have it on this tab too?

custom-actions.xml:

<tns:action id="CommitProjectAction" actionClass="my.package.CommitProjectAction"/>
<tns:actionGroup id="CompositeWsdlProjectActions">
    <tns:actionMapping actionId="SeperatorAction"/>
    <tns:actionMapping actionId="CommitProjectAction"/>
    <tns:actionMapping actionId="SeperatorAction"/>
</tns:actionGroup>

Cheers,

Norbert