The way the keypad works is that it has groups for the buttons (basically).
So, when you press a button, it then sends an insteon command to the device(s) in that group. The button itself is not a physical entity (responder), so we cannot tell it to “turn on” or “turn off”.
You will have to add the devices you want to control into the EZSrve and then control them directly by addresses or groups.
Now, we can control the status shown on the keypad linc as I mentioned in the other thread – I’ll get that demo out there.