Workflow? Multicam and Split screen(s)

(Loving Davinci Resolve - I'm a sound engineer using Resolve in anger for the first time and getting great results - ToDo: use Fairlight page as my DAW)
Anyhoo ... I have a multicam setup with 8 camera angles all sync'd, rendering portions of the timeline to suit (setting in/out points in Deliver page, etc: individual songs from filming a live gig).
Now I want to push it so the timeline is split screen (Inspector: zoom + position, keyframes for movement). Looking at more than 2 screens in split-screen view (3 but why not "Brady Bunch" nine?)
But how can I treat each split screen as a multicam and switch camera angles for each split-screen region?
Can it be done?
Or is my only option to make multiple passes of multi-cam selection of camera angles (best guesses), rendering each one THEN load all (three in this case) into another project, sync them THEN zoom + position + keyframes to create the split-screen regions on the timeline?
One consideration is I'm struggling for quality here: some of my camera angles are cropped/zoomed/positioned from one wide 4k camera, others are 1080p
Any suggestions gratefully received.
Cheers
Barry B
Anyhoo ... I have a multicam setup with 8 camera angles all sync'd, rendering portions of the timeline to suit (setting in/out points in Deliver page, etc: individual songs from filming a live gig).
Now I want to push it so the timeline is split screen (Inspector: zoom + position, keyframes for movement). Looking at more than 2 screens in split-screen view (3 but why not "Brady Bunch" nine?)
But how can I treat each split screen as a multicam and switch camera angles for each split-screen region?
Can it be done?
Or is my only option to make multiple passes of multi-cam selection of camera angles (best guesses), rendering each one THEN load all (three in this case) into another project, sync them THEN zoom + position + keyframes to create the split-screen regions on the timeline?
One consideration is I'm struggling for quality here: some of my camera angles are cropped/zoomed/positioned from one wide 4k camera, others are 1080p
Any suggestions gratefully received.
Cheers
Barry B