Set Preset Mode not working if a temp isn't defined in YAML

[mutasim]

As per this comment setting preset mode seemed to be an option.

I've created a smart thermostat but I'm not able to set preset mode.

The following error:

Failed to perform the action climate.set_preset_mode. Entity climate.openplan_smart_thermostat does not support this service.

I'm using HASmartThermostat 2024.6.1 on Hass 2024.9.1