I'm wondering if there's a combination of shortcuts/activators that would enable me to have a 10second visual cue/countdown to all ISO recordings, so a 10sec clock countdown or something that is on all multicorder recordings.
As this only works on the actual inputs, I'm not sure if possible.
For instance I have a setup that will put a countdown on the main output 10, 9, 8, 7 etc but if this was on all recorded files, it would make it simpler to sync all the ISO recording, which sometimes have a variable delay.

I hope I am making sense...