Many thanks Wolf !
But do the ML usb-output sources must be modified everytime the main ML graphic parts are updated ?
Or do it's automatic, so the PTP section don't need to be updated also ?
If PTP section must be updated to reflect the ML graphics, do it's kept up-to-date with the ML main graphics or it's left to his destiny ?
This is in order to know if it will be convenient, otherwise, to buy a HDMI field monitor and don't bother with the android tablet solution.
Many thanks for your next reply, Wolf !