Configure User Role

How can I configure the User Role for Action Nodes? I tried it with

</ExcludedModelItemUI>

  <ExcludedModelItemUI DynamicClassName="UML AD Action Node">

    <Menu ID="New"/>

    <Menu ID="Tools"/>

but it doesn't changed. In addition, I wanted to hide the stereotypes that are predefined. Is this also possible via the User Role?

Can someone help me?