RTF didn't work for me this time, I'm afraid, Mac.
Rachael - I haven't tried copying-and-pasting complete melodist/soloist parts between files - is this a matter of running two instances of BIAB at the same time, or going through a sequence like:
Copy (from old), Close (old), Open (new), Paste (new), Close (new), Open (old), and so on?
I've tried changing the number of staves-per-page without success. Changes to the number of bars per line would be awkward for other players because of the 4-bars-per-line standard for jazz fakesheets.
I'll mess around a bit, and see if I can find:
a) a consistent way of creating the problem
b) a way of fixing it.