Jeff, I'll get back to you after I check it out, but you may be able to do exactly what you want by using the BiaB VST as a plug-in in your DAW.
The BiaB VST would do its thing and you could add as many audio or midi tracks as you need.


Boyd
Win10 - 16GB-RAM - BiaB 2019 - Mixbus 4 - Slate Bundle - Komplete 10 - Ozone 8 - Neutron 2 - Waves Gold
Ample Sound Guitars & Basses - Pianoteq 6 - SSD5 - SD3 - JamStix 4 - Omnisphere - UVI Falcon - EastWest Play
Sonarworks Reference 4 -