got the custom motion menus off to a tee now, but is there any way of sticking an audio track to play on the track#1 menu?
I don’t think you can do what you are asking. You can make a background video with music which shows up behind all of the chapter scenes. Click your mouse in the background area and the option should open up to allow you to do that. Select your scene with the music you want and time how many seconds you want it to run. It is a loop so it keeps going as long as the menu is on the screen.