I was wondering if anyone knows of a shortcut key for controlling the Window XY and Window Scale parameters?

I know I can make viewport sliders for from those attributes but it would be great to have them part of the Camera Shortcut Keys for doing camera projections and modeling proxy geo for environments from a bg plate.

Any cool tricks maybe? if not what is the likely hood and ease of implementing this feature in future builds?

coming from softimage, i do miss this as well.