I imagine, yeah. Let me see.

[ flat turns on the faucet again, adding more water to the mirror. ]

So you take the image... twist it...bring it down...change the output...

[ and the mirror is divided in two, with a second image reflected on the lower half of it; an aerial view of central snowfield. though most magi would need their full concentration on one familiar, flat seems to be capable of doing it with ease, and still have enough attention to turn back to moriarty. ]

Something like that! It's sight only, yeah, but if I put together three or four of them, then I can get a really good view of the city.