Timed capture.

[ewerybody]

I though the whole screen capture and then drag rectangle would fix all the needs one would ever have for a timed capture mode.
But turns out there are certain things that change or go away on ANY key stroke. So calling the capture mode breaks it already :/

So I'd suggest we have a timed capture mode similar to the aA one but with the rectangle still drawn! Plus a progressbar indicating when to make the shot.