Thanks to you both,
Unfortunately, I have no experience in editing, so I would not know how to do this in a software. But I will still try to figure it out.
As for the FFMPEG option, it does look like Chinese at first hand but let's see if I can translate that -lol- this weekend.
Perhaps I could ask Krontech for a feature request as this Chronometer option would be very helpful for all those buying this camera for research purposes like myself.
regards,
jonathan