This is for those want to know what are the steps to program a comfort access key, if the position is already taken
Done with a VVDI2 full.
The first 2 key numbers, with comfort access keys ENABLED will function. Program it to any slot you want and disable one of the original keys – typically slot 1 and 2. What slot the key in does not matter, only that only 2 comfort access keys are enabled. Other than that it is identical.
(Thanks to Jerry King)