Files protection in "party mode" ("mode fête" in french)

As a few other music managers do, would it be possible to forbid any modification on files (deletion, move, retag...) while listen is in "party mode" ?

As the name lets imagine, this mode is to be used by anyone, and it would be useful to protect the music files from bad manipulations, like involuntary drag/drop, right click and so on...

Another cool option would be to quit the party mode by entering a password... (I guess I have already seen that with another player, but can't remember wich one ?)

(Rq : I'm not sure of the way to create a wishlist, so I create a bug from a question I asked... sorry for the duplicate!)