Seeduino STALKER 2.3 + XBEE Power Control?

Hi, i tried to understand the WIKI about the Stalker 2.3 but how do you actually control the XBEE power soldering the marked contact? could you post a sample sketch? or just explain the idea?

Thanks in advance

hey , we will add some simple demos for Xbee later , maybe you can refer to the datasheet of Xbee first.