Paul,
If you want devices paired to your Hubitat hub to also show up in SmartThings, you'll want to use a different solution than the one in this thread. This solution, from Hubitat, allows SmartThings devices to appear in Hubitat as virtual devices. However, you cannot interact with these virtual devices to have anything happen in ST. So, this integration is best used for sensor devices (Motion, Temperature, Humidity, etc...)
The following integration allows for Hubitat devices to appear in ST as virtual devices. It also have the advantage that the virtual devices in ST can be interacted with in order for actions to occur to the physical device attached to your Hubitat hub. So, a Hubitat light switch will appear as a virtual light switch in ST, which you can actrually turn on and off from either system.
