Thanks. I updated CoRE to the latest and also updated the DTH for the lighting device (although I’m not sure that matters as I was already running the latest) and now I get all 7 buttons listed when I select the device in CoRE.Yeay! 
. However I still have the issue where pressing the button on the lighting controller does not trigger CoRE to take action based on the Piston I have. I would greatly appreciate your help, as I am counting on this to as the only way to turn my Lifx lights on/off in the room (which are the only lights in the room). I detailed the Piston steps I am trying here: CoRE - Get peer assistance here with setting up Pistons . Thank you!!