Similar to how you can make smaller comps in after effects, and then import it into a larger project without merging the original assets; it would be great to be able to make audio 'comps' in audition. For example, in terminator 2, they used three or four different sound effects (including the roar of a lion) to create a distinct sound of the terminator shotgun. Instead of needing to lay down the four effects each time you want the shotgun sound, you could make a separate multitrack with the four sound effects, and then just nest that distinct 'comp' multitrack into the main multitrack. Then, when you need to make distinctions to that comp (like a shotgun fired outside vs in a hallway) you could apply audio effects to just the comp. You could have build up larger and larger too, so all you dialogue is nested together, music is nested together, etc, etc, so that eventually you have just one track that is the complete audio for your film. You double click on that, it breaks apart to dialogue, sfx, foley, background, music, and than you could double click on the music and it breaks it up to different instruments... and so on. They dont have anything like this in protools, when you create your distinct shotgun sound, you need to render it out, and thats it. Later on, if you want to change the shotgun sound, you need to re-render and replace each time you used the shotgun sound.