I saw a video on YouTube by Henry Clarke that shows you how to import a midi into BIAB and separate the instruments, one by one, by using "Copy Special/Copy Move Tracks."

Whenever I look at my midi with MuseScore, it has 8 instruments. When I open it with BIAB, I'm only able to map 6 of them. How do you add extra slots for more instruments?

In addition, my 3rd instrument is a French Horn. The only selections available on BIAB are Bass, Drums, Piano, Guitar, Strings, Melody (not selectable), and Soloist. What do you do?

Carlos