I think I figured out what’s going on here.
Our official Device Type Handler for the Danfoss LC13 doesn’t include the capability “thermostat” as it causes a confusing user experience in some areas, like Routines. In this case, it’s actually preventing it from showing up in this list as well.
My recommendation for an immediate fix would be to install a custom Device Type Handler that includes the capability “thermostat”. Here’s an example.
I’ll ping one of our Engineers and see if we can fix this on our end as well.