Harmony ST Devices in Celsius - Can You Change to Fahrenheit?

Not strictly a ST question I guess but here goes.

I really thought I’d find the answer to this via Uncle Google but I’m either search-challenged this evening or it’s just not out there.

My ST devices that have temperature show in my Harmony app as celsius. I would like them to show in fahrenheit but I can’t see how to change it. Anyone know if that can be done?

No one has encountered this?