VideoTrack, thank you for supporting idea on partial bar freeze!

yes, it (re-generation) takes a lot of time out of my "creative" time. I like to experiment with progressions (and other features) in BIAB. As you know, to audition even a minor change, whole project is re-generated.
So figure, for each typed chord or character that takes lets say 3-5 seconds to input, there is a 10 or so seconds of wait time for regen.

P.S. My comp is 6 core / 32ram, nvme internal drive with Audiophile on it. Speed of the setup helps, but not significantly... And yes, "speed up regeneration" box is checked in BIAB. So the idea is... if you only regenerating-10-15% of the whole tune (while the rest is partially frozen), regeneration time would be much faster. Sort of getting two rabbits with one shot smile