Seems to me that instruction on the screen sounds confusing and vague , plus it is still a Hit or miss proposition Hero or Zero kinda tool IMO. Autel should allow folks with the newer Elites and 64GB platforms to add the IM508 software App to their tools for a couple hundred bucks and buy a separate XP400.
A guy with an old 2002 M class Mercedes couldn't even add another blade key at this time with an IM608.
https://www.youtube.com/watch?v=cGXPsm7ApsA&t=524s