sorry Audio Track - i know the post was in the BIAB forum but the point i was trying to make is that whilst you can do almost anything in BIAB, what the OP wanted to do is so easy in RB. I'm on a one man mission to ask people who have never even opened RB to take a look at the program they get for free which is actually simpler to use than BIAB - IMHO.

i know i'm not alone in switching to RB after generating a basic track in BIAB and appreciate that some users prefer to stay in BIAB to the very end.

As you say............."We can only hope. Maybe 2025? In the meantime, we can only work with what we've got.
Also, not all users are highly skilled at mixing, especially dynamic mixing, and many would not have the required add-ons."

We've all got RB and it takes very little skill and no add ons to achieve what the OP wants to do in RB.

But whatever work flow works for individuals is up to them and BIAB is a truly amazing program.