Redmine

I didn't find any way to hide the list of changed files on each revision page (like http://www.redmine.org/repositories/revision/1/2475).
I would like my users to be able to see each revision (and its message), but not the file list (ie. the structure of my application).

Is there any way to do it? Or could we implement an authorization for this? Like "See changed file list".

Thanks a lot!