Rename Your NXT
Use the button (number 1 in the graphic) to type in your group name in the box (2). You can use only 7 letters. As soon as you type the name use the little enter button on the side (3) or the name will change back and you have to start typing all over again.
We're only using two robots but we still need to decide who's the Boss and who is the Helper. The Boss can talk to all the Helpers. Each Helper can only talk to the Boss.
The Boss should be the rescue robot. The Helper should be the searching robot.