I’m using the Liftmaster 821LM (https://www.liftmaster.com/For-Homes/Accessories/MyQ-Accessories/model-821LM) which I have wired to my Sommer garage door opener. I have it working via the MyQ app, but not in SmartThings. Using your device type code and device, I was able to add this as a device in my app, but am unable to control it or see its current state. Do you know if this works with this device (821LM) or only Liftmaster garage door operators?