If you are serious, its the trigger for the foul deck lights....LSO can visually signal a waveoff with it. These are red and green lights on either side of the TD zone, which glow green for a clear deck, and blink red for foul deck. I believe the airboss also has control of these, though I could be mistaken
Yes I am serious and thanks. I was watching of video of landings for the LSO area and there were about four or five of them doing that.