wow, the repeats might be just what I want.

so in theory, for all blues, as an example:

- Enter 12 chords into the chord sheet
- Set 2x repeat (need to check how to do this)
- Set 4 choruses

Check "vary for middle choruses". Should result in 8 repetitions with following variations.

AA BB BB AA

Will put this to the test later, thanks for the suggestion.