@squawk
Have a look to the report of the A330 test flight crash 1994 at Toulouse.
Even the chief test pilot wasn't aware of the autoflight mode/submode!
Have a look the Warsaw 320 overrun report! Very complex systems. Afterwards the mist cleared a bit. But must it have an accident to show all the fancy design features?
It's impossible to know all the features/modes/submodes beside different software-/hardware specs and modifications even within one type but different models.