If Biab could use those keyboard styles just like JJazzLab does, no copyright:

At the moment you need to open the Biab SGU in JJazzLab using the above styles and selecting the style section bar changes then export midi back to Biab.

Biab just has A B and Ending sections in the UserTrack that limits having more different variations.
But being able to regen at any bar or beat would allow users to select a substyle of the UserTrack, and having all other track types MST,UT,Midi style, loops.. to be able to change in F5 and regen in Util Tracks.


(Just rename the keyboard style file to .mid)