Hiding preferences items in the settings bundle

Question

Just a question i've been stuck on for a while. I would like the user to be allowed to hide some settings found on the Root.plist.

Anybody know if this is possible? failing this is it possible to essentially have two Root.plist files and swap between the two depending upon a variable? Please let me know if there is fundamentaly anything wrong with what I am try to achieve.

Thanks for your help :)

ps/ Alternatively could I be able to "grey-out" options within the app settings?