Tree2- how to hide a branch

[Jiang, Jane \(NIH/NCI\) [C]]

I need to hide a branch of a tree for certain users due to configuration.  I 
tried to use something like this

        <f:facet name="Test Folder">
            <h:panelGroup rendered="#{node.render}">
....
            </h:panelGroup>
        </f:facet>

I could only hide a node this way, the little + sign still shows and can be 
clicked to show the branch under this node.  What's a better way for hide a 
branch?

I'd like to leave my tree data alone since it is shared by all users.  This is 
just a display option.

Thanks,

Jane