[CME]

And if you've already cleared a session but didn't delete the files you can do this. Create a copy of the session to somewhere else and select the option to include all audio files. This will move only the files you're using. If you've already removed them from the clip list.

Then I move the old session to the trash. Compare folder sizes. Open the new session and make sure everything is there. Then empty the trash.

But I typically just delete from the get go. But that's what I've had to do the few times I hit the wrong button and only removed the audio files from the session.