Jim, Pipeline,
Got it.
Thank you for extensive explanation!

P.S. BTW that is another reason why I want to have more mixer tracks in BIAB, to have more control over "generations". If it happens, I would rather have 2 separate UserTracks Octave Up / Down and be able to chose which ones I want to play at certain bars or double them up if fits nicely without sacrificing limited tracks as it is now.