How do I configure a Smart Gate or Wireless Smart Gate to use the time of flight accessory? The Smart Gate and Wireless Smart Gate have a socket to receive the plug from the time of flight accessory. Once this is plugged into the socket, launch SPARKvue and attach or pair your Smart Gate to your computing device. Once the Smart Gate appears in the center column, click on the gear to the right of the Smart Gate text. Next select, Time of Flight within the section "Smart Gate and Auxiliary Port". Click OK. Next, select the digits display from the far right of the screen.