Hi, I'm trialling DMX 4. I like the concept of categories and local root folders. However, it would be great if the list of categories displayed to a user only included those categories that have documents for which the user has access to, if you get what I mean? I'd like to use DMX for quite a large collection of documents that would be accessible by both internal and external users and would not like the complete list of categories exposed to the external users. Is this possible?