I'm finding I'm wishing for this every time I use live now.
I really have a problem with the automation record setup at the moment.
What I want to do is to either be able to hold a bypass modifier key to suspend recording of automation while I make a tweak that I dont want automated, and/or have record automation enable buttons for every track so I can decide which ones I want to record the automation for.
At the moment as soon as I press record it records every change I make but some times I'd like to maybe hold the alt key and change a level somewhere without it being recorded.