Nero Vision Express 3 question

I use Nero Vision Express 3 to burn dvds. In the menu part of the program, you can add a song to play in the menu background. Right now I have a ton of songs in my audio list that I’ve used in the past for menus to other videos that I’ve made. How do I get rid of them? I’ve done it before, but for the life of me I can’t figure it out now. :sad: