I have a project in which I was given the 24 stems of a song in order to edit it for a music video. I needed the split tracks in order to remove certain vocals and/or instruments are certain points. When I'm happy with the music, and before I begin editing the video, is there a way to mix many of the tracks down into a single track. I know that Avid has a simple way of doing it, but I'm not sure about FCP. Thank you for your time and help.