Using the CPS R20.01.00 to program a VHF XTS 2500 what am I missing to be able to enter a NAC ? I would like to set a mixed mode channel, conventional, with PL and a NAC but I can't find the option or location to enter the NAC. What else i would need to check or activate in the personality setting to turn this on. My dropdown is CSQ, PL, DPL am i trying to set this in the wrong place ?