The pics above are the manual, it has not got all these menus like Biab RealBand, what you see that's is all there is to it.
File > open SGU > Generate button up the top, solo mute any tracks.
If you have tracks in Ableton when you hit play the BBPlugin tracks will play along in sync.
Once the track/s you like are dragged into Ableton you can mute the track or un sync the BBPlugin or generate up another style.