Sometimes it is very handy to have grey space outside of your canvess to be able to operate various tools slightly off the canvass.
For example if you are working with a brush, once the brush is more than half the canvass it become a regular curser again because there is no grey space available, or the edge of the screen is in the way. For this reason it would be good to be able to scroll past this point.
It would also be nice to be able to centre the edge of a canvass on the screen, whilst the canvass is set to full screen.
Does anyone know of a way to do this? If not it would be a great addition in some sort of update.