Videotrack,
I am talking about cumulative time. If I input 80-100 changes per "sitting" especially when working on progression, generation takes quite a bite from my time. And the request doubles as bar freeze. Because if I add/remove bars and even if I "know" how it should sound, I still have to regenerate every step, to see if the phrasing of real tracks went away in other places... So in one session about 20-25% goes to regeneration times. I would say 8-10 sec. each pressing of regen button....

My main request here is "freezing certain/selected bars" and as by-product, it might shorten regeneration time.

Pipeline, thanks for the input. Interesting thought, but far away from my workflow.