Feature request: Resize with ALT+Scrollwheel

[SiameseParrots]

Most of the time Shift + Scollwheel for page sidescrolling. The difficulty occurs when images are stretched along the horizontal axis, so if u want to sidescroll u need to hover with the mouse over an empty canvas space.
Can be tricky not to hit the scale-shift-scroll event when there are some images stacked.

If its possible a toggle between Alt and Shift would be great!