Hi @Unger_Family - welcome to the community and thanks for posting!
We have been in close contact with SmartThings asking them to add support for STHM via the API, but it’s still not on their roadmap. From what we can tell, there are people within the organization who are supportive of exposing STHM via API, but there’s also much more organizational red tape which is ultimately preventing it.
That being said, you can use Virtual Switches along with the Custom Automation creator in the new Samsung SmartThings app to expose STHM to apps like SharpTools. You can find more details here:
From the FAQ: SmartThings Mobile App Migration thread: