shortcuts to show live data for some different error reasons.
Now I have to open many +++ and not sure it's always the right one for a special problem.

Example:
bad running motor,
test drive modus: Temp control engine, oil, coolant, fan, speed, rpm, etcetera.
bad CO

Someone who is not a mechanic did not always now wich data nessary is on a forum to get a right answer for his problem.

Maybe you can make different pre setting keys?