Our Symphony group is interested in offering payment plan options to subscribers this year and I'm struggling with one aspect of setup: how to limit the payment plans that show up on their TNEW payment page. The payment plan documentation says to use control groups to limit the payment plans that display here but I am drawing a blank on how to accomplish this. They literally want only one option here and nowhere can I find a way to make just one of their payment plans show up. Additionally, there are a number of payment plans that are "(Default Control Group)" that I cannot stop from showing up. Help?