It is reassuring to learn that it is accessible on the P550e, since it was entirely unattainable on the P510e (albeit not an issue for the P440e) at the time I placed my purchase for the vehicle.
I own four genuine seats in my vehicle, and for that expenditure, I expect to have the ability to choose the temperature control settings independently for each seat, as I have always had in every previous car with four genuine seats that I have had, even those from two decades ago.
Possessing a 3-zone temperature control system is analogous to having three buttons for window operation. Two for the front doors and one for each back doors. Why?