Adjust window size in Edit Snap Areas

Adjust window size in Edit Snap Areas, that is, the violet-grey color area that shows the window should be moveable and resizable.

This would greatly speed up adjustment-optimization over time since you would not have to delete then remake the window where you want it.

Yes I know you can adjust its position by numbers but this is too frustrating to work with.

I don't know how there aren't move votes for this. Would be hugely helpful.

Has anyone addressed this good suggestion yet?