[Zope] Tree, followup

[David Ascher]

Given the following tree tag:

<!--#tree sort="title_or_id" branches_expr="objectValues(['Folder'])"-->
 <!--#unless hidden-->
  <A HREF="Code/<!--#var tree-item-url-->">        
    <!--#var title_or_id-->
  </A>
 <!--#/unless-->
<!--#/tree-->

How can one:

  1) avoid the + showing up for folders which contain only hidden folders?
  2) have the sort do a case-insensitive sort

(one of my original questions still lives:

  3) keep the tree always showing the entire hierarchy

)

Thanks.

--david