Noel,
Thank you. Yes, I tried this and that... and a bunch of other things. It is just annoyance I will have to live with until PG figures out how to make things faster. On that note, the link that pipeline re-posted... I support that, +10 smile

But why is idea of freezing selected bars and generating(re-generating) unfrozen sections is not better?

In my opinion it gives a greater control over the arrangement as whole.
For example you can do 4 "change" re-generations in four different places leaving everything else frozen...

Maybe pipeline's / JJJ idea supersedes this, selected bar freezing and I just do not get it as a whole. Have to think about it.


P.S. Two more thoughts on this matter, while I still remember them smile

1) have bars one color... When change is introduced change the color of the bar, so you know where change was made and so only those "colored" bars are re-generated.

2)Set automation = regenerate last # of changes.