Record off for all

Turns off “Record” for all channels. I can’t seem to find any specific documentation for this.

“Record off for all” is mapped to OPTION+REC button on an MCU. If you press and hold OPTION, then press REC all channels will have Record turned off.

Mackie Control channel strips (1 to 8) — Control Surfaces Help

OPTION
Disable Record Enable button for all tracks.