Here’s what I was given. 
The project right now is complete, except it’s 2 channel stereo. It consists of interviews and narration, and audio/music tracks.
I’m not sure about “roles”, is there a tutorial you know about?
The idea I had is take the narration and interview tracks, and make dual mono compound clips, and the audio/music channels also make compound clips..that gets me to 4 channels, but I’m not sure what to do about a center channel and the other channels. Would it be basically be copy the compound clips and assign them..making 4 narration tracks (and a center), and 3 audio/music…for a total of 8 “tracks”