I think it may be useful for diagnosing networking issues to have a button that ping'd the IP next to it. For example the other day I was trying out some ArtNet pixel panels, I had one setup next to the desk and couldn't get it to work over ArtNet but it would work fine over DMX. I tried pinging it from my laptop and found it to be a dead network card in the light. being able to ping IP's from the desk would be really useful for diagnosing network issues. When you press the ping button either you get a green tick by the button or the average ping time is displayed