To transform into Command Form, the user presses the button of the Raising Sword, and pull the lever of the Command Twin Buckle that is set to it to charge it, remove it from the Raising Sword and set it to the Desire Driver while the other Command Twin Buckle is set, and pull the lever to transform into Kamen Rider Geats or Tycoon's Command Form. After the transformation, press the button of the Command Twin Buckle and pull its lever to perform a finisher. Doing a Revolve On will switch it between Cannon Mode or Jet Mode.
More on the Raising Sword, you can charge it by pulling the lever of the attached Command Twin Buckle or pressing the button on where the Command Twin Buckle was set, then pressing the button found in the handle. This set cost 6,490 yen and is set for a December 3rd release.