So I just got my brand new beautiful DJI Phantom 2 Vision Plus version 3. I have a simple question. I have my range extender and the clip for my iphone. Everything works fine. But the S1 and S2 button has no label on which is GPS or ALTI or Manual. I see many you tube videos have a label on the remote. Am I missing something? I thought the videos I was looking at online were also version 3 P2V+ so it should be the same transmitter? Did I not get the labels?