Currently, when using alt-e-scroll wheel to rotate a token's facing, the number of degrees moved per increment of the scroll wheel seems to be around 8.27 degrees. This would SO MUCH more convenient if it were exactly 7.5 degrees. You could then use alt-e-scroll wheel to change token's facing by 15, 30, 45, 60, or 90 degrees as needed. once complete circle would be exactly 48 increments, a 90 degree turn would be exactly 12, etc, etc.