How to toggle all channel automation to "mute" or "volume"?

Question

I would like to be able to enable mute automation for all chammels simultaneously, to simplify cleaning up the beginning of each song.
At the moment, I need to select each channel separately, which is very tedious when you have 50 tracks or more...
I discovered two key commands: "Toggle Automation Controlling MUTE" and "Toggle Automation Controlling VOLUME" and I assigned keys to them, but neither seems to switch the automation to their particular mode.
What is the intended usage of these key commands?

Answer 1

Yeah, there are six of these commands and they're a bit odd. What they do is to toggle whether Automation works for these six things:
Volume, Pan, Mute, Send Levels, Plug in Parameters and Solo
To try them out:
Assign a controller to Pan
Set Automation to Touch
Display track automation for the current track
Press Play
Mess around with the controller that you've assigned
Should work fine and the automation will be displayed.
Now, assign a key to Toggle Automation Controlling Pan
Press the newly assigned key combo
Try recording automation again and it's disabled
Never really figured a use for these commands, although it's possible that disabling the plug-in parameters might be of some use but I'm not convinced.
One of Logic's more obscure functions in my book. Oh yes, don't forget to get rid of the key command again, unless you love it with a James Brown type passion.
Pete