Sorry for the silly question ...
but I do not remember if Cropmarks are visible while Camera is recording.
I only see a Green/Red little camera flashing a a timer.
Am I wrong ?
Overlay tab -> Global Draw -> ON
Movie tab -> RAW video (MLV) -> Global Draw -> ON
(Prefs tab -> Powersave in Liveview -> Turn off GlobalDraw OFF)
Will cost processor time -> Reduced recording time and/or reduced resolution for continuous recording
Thank you