Welcome to the forum!

I probably can't help with most of your questions, but you should be able to add the keyboard via usb as a midi device using Audio-MIDI Setup under Utilities on the Mac (if it's not automatically detected and added just by plugging it in).

If you bought BIAB from PG Music directly, you are "registered". If you bought it elsewhere, I'd check the support page on PG's website, or contact support via that page.

I'm betting the soloist disc message is a leftover from the days when BIAB was provided on multiple discs but I could definitely be wrong about that...

Good luck,

Bruce


Macbook Pro 2018
2.6 GHz 6-core Intel Core i7, 16 GB RAM
OS Monterey
BIAB for Mac 2022