Yep, you sure can Ted - simply load in the .ins file (created by Sonar, or there is one on the Roland website) ...reassign the patches in the styles, save the song...and off you go.
For example, I am using Roland styles with the Korg Kronos sound engine
- Yamaha styles also work, but I prefer Roland Style programming.
You can even load in Roland G70, E80 styles if you like. Dan is working on the porting for actual BK7m styles. I ahve tried a few and I have not noticed too many issues, some timing glitches on chord change points, but Dan is already on it
Dennis