If you like the entire track then you can freeze that track so it will not change: right click on the instrument you want to freeze, click on track settings and freeze - OR - click on the mixer then click on the asterisk that is just right of the solo (S) icon.

If you want only a section of a track, say the chorus section, you will have to open the BiaB file in RealBand. Only RealBand will regenerate a section of a track, BiaB can only generate a complete track.

I hope this helps and good luck.

When you are at the checkout line and they ask if you found everything say "Why, are you hiding stuff?"

64 bit Win 10 Pro, the latest BiaB/RB, Roland Octa-Capture audio interface, a ton of software/hardware