The ability to have separate child devices isn’t officially supported by ST yet so I wasn’t able to implement the driver like my DTH.
You can still control all the child devices from the device details screen, automations, scenes, but you can’t rename them or use them with 3rd party integrations like Alexa/Google Home.
You can make them appear on the dashboard within the parent tile by enabling the “Large View” setting.
There are a couple of workarounds that allow you to create and sync them as separate devices…