There has been no new response to this issue so I'm looking into creating a VST that will read the current track data in the main Biab and transfer that to the VST (same as I can do in Reaper), so the VST will be playing the source track sections back in sync to the DAW tempo map.
So any change in the main Biab can be updated instantly in the VST.
As you drag it will render the sections to wav.
This will give the same as I can do in Track Injector but in any DAW.