i manage to put the seat codes for 4 places in one part, but KSP only let me use one kerbalSeat seated at a time.
I have the four pivots, i have the seats codes on cfg for each one (seatPivot01,02,03,04), but when i seat one Kerbal, all others got locked together.
So, i believe in the actual functionality of the module, i will have to use separate parts por each seat inside the part
(you can see what i'm talking about on the last post of my signature thread.)