If it helps anyone, I was able to get the HomePro Wall Dimmer ZDW100W to connect as a generic Z Wave device.
I have a HomePro ZTH100 along with serveral of these devices that were given to me.
Using the HomePro ZTH100:
- Press Menu Button
- Select Set-Up and press Ok button
- Select Reset Unit and press Ok button
- Press ZDW100W Switch
- In Smartthing Add a device and wait
I think they were already paired with the HomePro ZTH100 and the Reset Unit released it from its control and placed it in include mode.
Hope that helps someone.