I was pointed to this code, which solves the issue of no REM DIM on Express(ion). I'd say release is not all that helpful in comparison, because it can be replicated with only, what, like two keystrokes (@0)?
This is what you'll want on your macro.
[AT] [FULL] [REC] [GROUP] [1] [ENTER] [STAGE] [CHANNEL] [1] [THRU] [# System Max] [EXCEPT] [GROUP] [1] [AT] [0] [0] [GROUP] [1] [AT] [FULL] [BLIND] [CHANNEL] [1] [THRU] [# System Max] [AT] [0] [0] [REC] [GROUP] [1] [ENTER] [UP] [CHAN]
This is what you'll want on your macro.
[AT] [FULL] [REC] [GROUP] [1] [ENTER] [STAGE] [CHANNEL] [1] [THRU] [# System Max] [EXCEPT] [GROUP] [1] [AT] [0] [0] [GROUP] [1] [AT] [FULL] [BLIND] [CHANNEL] [1] [THRU] [# System Max] [AT] [0] [0] [REC] [GROUP] [1] [ENTER] [UP] [CHAN]