How to hide a tree2 branch

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

Hi,

I'd like to hide a branch of my tree based on some session settings, for 
example, user is a guest user.   I tried to use the rendered attribute of the 
panelGroup.  
        <f:facet name="Secure Folder">
            <h:panelGroup rendered="#{user.hasAccess}">
                ...
            </h:panelGroup>
        </f:facet> 

It does hide the node, but the little + sign and the line still shows up.  Is 
there a better way to hide a branch completely?  

Thanks a lot for your help,

Jane