When recording with the built in video app, if you tap the screen a little box appears. You can then drag it around the screen. If you long press the screen, a box will appear in the top left corner permanently.
What's the purpose of this box, and moving it around? Does it have something to do with focus? I've browser Amazon's Help about the video app, and searched the net. I've never seen it even get mentioned. Perhaps it's too obvious and I just don't get it...?
