Yes, this!
I need to have a solution that replaces the ease of functionality of the Hive app with something running locally on HA. But saying that,most of the interaction is actually by voice (Alexa-but will move to HA Voice at sometime)
I do have TRVs, but hardly ever change them from a schedule.
I wasnt sure how to implement your solution… I copied the template bits into the view and these seem to work. I have managed to get the package files working as far as I know.
Happy to learn - you have much more in the way of skills than I do at this!