Hi,
I did quite a few years back for my kn3000. In those days I was content to just have the 2 variations and that awful drum tap they used to call an intro.
Unfortunately the BIAB styles I've worked on recently are not really complete yet.I do a lot of experimenting to try and work out what does & doesn't work. I've yet to work out how to get 4 distinct variations ( as BIAB really only has 2 (a&b) and even though the program creates a slightly different version each time you regenerate a song, the differences are only slight.
Also the demo songs in BIAB sound good possibly because of the complex chord changes they use, but when I've created a style from that same BIAB style it sounds rather bland and incomplete compared to our kn7 styles.
The intro's & endings still leave a lot to be desired also. At one stage I was hoping to maybe use the soloist function to try and create intro's, but for the time being I've had to put BIAB on hold.

Instead I've been working on the best way to try and convert psr styles. At least they have good intro's & endings.

I'm also still hoping to get a bit of a style group started for the members who are interested in creating their own styles. Just on ideas and which buttons to press etc.
If your Pr actually has seq to style function, there's no reason why you couldn't create your own styles from BIAB. The actual process itself is simple enough. The hard part for me ( mainly because of lack of musical ability) is in the finishing off and making the style sound good.

best wishes
Rikki