Hi Dave,
The short answer to your question is “no”. There are no separate audio tracks from video tracks. You CAN manually separate audio tracks from video tracks, but I don’t recommend it. However, you can relearn and retrain yourself. I began my editing career on Avid, then moved to FCP, then Premiere, back to FCP 7, and then to FCPX. My employer simply said, here’s what we are going with, go learn it on your own. Even though I’ve been using FCPX for many years, I still struggle with the Magnetic Timeline during the re-editing process. Recently, a friend colleague of mine suggested Ripple Training, so I have signed up to learn those little tricks and tips that should keep my swearing down to a minimum! Simply put, just because you don’t know FCPX, doesn’t mean you can’t learn it in a short amount of time. As an NLE editor, you know what you want, you just have to know what keystrokes and the terminology to get there. Good luck!