[Zope] Forbidding overrides?

[Cees de Groot]

Something I remember from my early Zope days that could be solved, but I
can't seem to find an answer: say I have a simple site where people can 
do simple things within their folder. However, I want my banners/logo
whatever on their pages, so I've setup index_html to put my own stuff
in and include their body_text. 

How can I prevent smartasses from creating index_html documents in their
folder? More generally, is it possible to disallow certain folder methods
or properties to be overriden from a point in the tree? 

-- 
Cees de Groot               http://www.cdegroot.com     <cg@cdegroot.com>
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