As the GM, I don't really have a need for FOW to be removed since I can see through it anyway. and if I really need to know what the vision of an NPC/creature is, I can just turn on its visibiility and mouse over to see the white outline of the extent of its vision. And if all I have to do is [shift][ctrl] [P] to have it work like a player screen, that seems easy enough to do in game without slowing things down on my end. 