windows should jump from column to column without the user moving the mouse all the way to the start of the next column if that direction of motion is to the right. This makes the behavior uniform to a left drag, which transfers the windows to the left column with a few pixels of motion
windows should jump from column to column without the user moving the mouse all the way to the start of the next column if that direction of motion is to the right. This makes the behavior uniform to a left drag, which transfers the windows to the left column with a few pixels of motion