You can do this with a normal cursor too. Get the cursor to the edge opposite the one you want to get to. Press escape to go into loose lock mode (not sure how to describe this).
By taking your cursor down outside the box, it doesn't register as being too far away (stays yellow). You can loop your mouse around to the other side outside the window and instantly your cursor catches up when you re-enter on the opposite side.
By taking your cursor down outside the box, it doesn't register as being too far away (stays yellow). You can loop your mouse around to the other side outside the window and instantly your cursor catches up when you re-enter on the opposite side.