Michael,
I think in essence you are asking to be able to have more tracks, Midi in particular. There were several requests to OPEN up the mixer, so users do not have to be, as you pointed out, "confined" or limited. Basically channels on demand... Midi or RTs

Charlie has workarounds that he shares. He knows his way (Huge respect!)... However a user does not have to be a juggler in my opinion. Ping pong days of 4 track are long gone. This is straight forward stuff that needs to be available at your finger tips. Period.

I would love to do more midi stuff in BIAB, so I can hear everything with real tracks, without jumping from program to program, saving /re saving / importing / exporting... and so on. As of now it is a bit of a pain below the waistline.

So, if I understood your request correctly,

Big +1