You contact Member Services like you normally do. You will be transferred to a CM that has been specially trained in DVC and Cro systems so they can set up a GG for you. All members of the GG group need not be dvc members, they just need to be staying on property including Swan or Dolphin. We are doing our 2nd one at Thanksgiving. Hitting the Magical Fireworks Voyage and the Illuminations Dinner/Desert Reception.