+1
You can do this in the BB Plugin
Over 255 Bars In Plugin v3

Just the current version of the Plugin needs a fix as it's cutting the last beat of the last bar off, hopefully should be fixed soon.
https://www.pgmusic.com/forums/ubbthreads.php?ubb=showflat&Number=628608#Post628608
Originally Posted By: Pipeline
Here are 10 BB Plugins song sections.
New sections can be made by simply duplicating a track/s.
Tracks can be put in a folder.
It will show the chords of selected track only.
It can zoom selected section.
If you don't like a section, just regenerate all tracks for that section or a single instrument or a different style/key.
This is a lot quicker just regenerating the section of the song you need and not the whole BB song.
Each can have 16 sends.
You don't need to drag the wavs into Reaper, you can send them out to FX then render the Reaper project.
You can use the same track template for any project.
The magic in all this is being able to set the sync offset to start the BB Plugin at any bar, 1000 bars no problem.

https://www.dropbox.com/s/x2j7z5odmle7o9z/BBvst-Song-Sections.mp4?dl=0