I have an extra set of wheels for my 2017 GSA, and according to the GS-911, I have the ability to have two sets of TPMS's, set "A" and set "B". when I use the GS-911, it only shows option for one set. I'm I missing something? The TPMS's that I have for the second set of wheels are OEM from BMW. Thanks for your help in advance. The only option that I have on the GS-911 is the XRDC which only allows for one set of TPMS.