Ian,
You can not only do that, but you can highlight a section of one track, and generate/regen as many times as you like, and better yet is a feature called Multiriff where you can generate 8 variation of the same section at once to pick through (as long as you have 8 blank tracks of the 48 available) ..
or highlight a section for all tracks, change the chords and generate just that section on all tracks.
There is a ton more flexibility in RB.

As Jazzmammal mentioned, I also change the BB tracks to regular tracks right away for more control.
Then (important) Save As a seq file format, so you don't lose your work. If you click Save it'll save it as a BB file (if you opened a BB file). So make sure to save as a SEQ file and RB will take it from there.


I do not work here, but the benefits are still awesome
Make your sound your own!