+1

I just wanna tag onto Pipeline's suggestion with my understanding of how this should work. I was really hopeful that Multiriffs implemented in BIAB would be more like Realband.

1) I freeze my track and then select only the bar(s) I wish to regenerate
2) I click the regenerate button and BIAB gives me one or more different RealTrack riffs to replace the bars I chose
3) If I like the replacement I click OK and it is immediately integrated into my track inside BIAB with no external files for me to deal with
4) At this point I am back in BIAB and my track has had the selected bars replaced with the chosen riffs and I can save it like any normal BIAB file

This approach would be efficient and effective. It would not require the use of a DAW or any extra WAV files. There would be NO comping required by me of any type since BIAB would be doing the integration. It is a super clean result with a track just like BIAB always generates but with me having selected the riffs for certain bars.