with only 2 windows i would use the preset PiP setting (button on the right hand side in maximizer options).
Like that you would get a bit screen for your main, and a smaller screen *inside* the big one for your follower.

changing your maximiser settings should not affect your other pass keys. (apart perhaps from the pip swapping key.

note however (got me thinking for a moment) that if the keyclone configuration is OPEN, then the key broadcasting will not happen.
make sure you close all keyclone option windows.