how do you get a mix of tracks to show up onto track 1
You don't. You edit the multicam using track 1 audio, then renest the original sequence into the multicam sequence on track 2. Delete the track 2 video and move the track 2 audio up to 1, overwriting the 'cut' audio and giving you all tracks from the original.
Since I didn't want to ask a stupid question, I have been trying to do what
you suggested below, but I am not meeting with success (which means I am
doing it wrong :o)
I have made my edits in the multi Camera sequence I created and used the
Multi Cam "enabled" setting (labeled this sequence "Multi"), and then
placed the original multiple camera and tracks sequence (labeled
'source' which was first lined up and synced) into the video 2 track in the
multi cam sequence.
So now I have 2 tracks of the original "Source" sequence in the "multi"
sequence: one cut into shots and one uncut from the original sequence.
But, only the audio is coming in from the first track, even though the
tracks are all activated in the original sequence (nothing muted).
I know I am close, but not sure what I am doing wrong, and the audio from
the tracks is important for the final product.
Did you enable multicam on the second nest? If you did, delete it and redo the second nest, but without enabling multicam.