I have mentioned before the Biab can do this intelligently by adding the Playable RealTrack notes to existing chords to create an unavailable chord or a custom chord.

This is Melodyne using the actual RealTrack source segments (it's monophonic but can do polyphonic):
Full Screen


You maybe able to do all this with Reaper's ARA soon : >
Originally Posted By: musocity
These are the original solo sections from a Biab track.
Any section I can extend or shorten the original playing.
If you watch the video where you have the gaps you can manually merge so there's no stop, you can't do that with a consolidated wav or in Biab now how it is:
Reaper-RT-Solo-Extend.mp4

Originally Posted By: PeterGannon
>MusoCity: If you could do the same in Biab/RealBand/Plugin as I can do in Reaper with the track sections it will further improve Biab to allow for more creativity control

Agreed, and this is something planned for BB2024 (and BiaB plug-in w/DAWS like Reaper that support these track sections). This will open up lots of additional options when customizing solos and other tracks.