how much stuff do we really need to explain here ? See: ... Actually, it is a fairly-useful shortcut that the boxes can be clicked even if they are not foremost in the window... For instance, the yellow-normal version of the event is currently selected in the forefront... To select a different (blue or purple) version, you would normally need to scroll-drag the screen to bring that version to the forefront... However, in reality, you can click on the small edge-of-the-box shown for each level on this current-screen and get to them without needing to do the full drag, first...