lock/unlock option on game details page or anywhere with key combo.

I would like a feature that allows me to lock/unlock BigBox from anywhere (with maybe a key combo) or at least have the option to lock/unlock from the game details page.

Often I'm trying out new games and like to favourite them, but have to go all the way back to BigBox menu and then back to the game, even hide a crappy game. I would really be nice to this right there and then.

Thanks Kevin