generally, good menu design is "put the thing they click on most in a place that makes it easy to click on." This menu seems to think that track color and track icon are EXTREMELY IMPORTANT, and puts them right next to the mouse. You are clearly expected to constantly fiddle with the color and icon, which has no effect on the music, just the display of the instrument. I am unsure what bouncing does, but it apparently both extremely unimportant and also important enough to dedicate a hotkey to.