Opel Display: MID, TID & GID Explained

Hello,
Has anyone tried to program the display on an Opel with a CAN bus system?

I've already figured out some things, like how to get the ID and how the message is sent.
But I still need to add a few characters before the message can be sent.

Sure, here's the translation:

'Thank you very much in advance!'

Best regards ///M