Hello, first you go to the addons, then misc and then install the Rest Documentation. The next step is to copy the name of the Send Button Press “harmonyhub:device:HarmonyHub:58270035:buttonPress” and go to the Rest api. You find the rest api on the overview site or here http://YourIPAdress:8080/doc/index.html#!/channel-types/getByUID . Go to channel-types/getByUID. Paste the Send Button Press “hamonyhub:device:HarmonyHub:58270035:buttonPress” in the ChannelTypUID Value Box and click the button “try it out!”. You can see all the commands from the device.