Protect Library Views?

HI all

My case is: I have released songs in one LibraryView and unreleased songs in another.
I dont want certain players to be able to use the "unreleased" library.

The only way I know to do that is to run a second instance of LMS. Probably a headache I guess.

Is there another way?
I do have *some* programming skills so maybe I could eventually hardcode MAC requirements?

Any clues?
Thanks!

BTW if this is to be a feature wish, maybe such a restriction would be put into a .restriction file in the library root.

Best
Manu