Windows 10 home, Finale latest version
A bit of a tricky problem:i
I have merged 3 scores horizontally, A followed by B followed by C. In score B I had forgotten 2 instruments, trumpet and trombone. So Now I end up with an A part and a C part that have all instruments and staves, and a B part that is missing these two instruments/staves. I need to add the trumpet and trombone staves to just part B, so that the score looks the same throughout (same instruments, same number of staves). How can I do that?