ADP (which is the only KG you have) is "standard" so to speak, and you just use the CPS to configure that.
If you want to use other cryptos, you're going to have to get your subscriber units upgraded (I don't know the pricing off the top of my head for those), a KVL 3000 or 4000 (the former can run you hundreds of dollars depending on what options you have, and the latter several thousands of dollars), and a cable to interface the KVL with your radios.