Mysa thermostat home/away mode

I have a Mysa baseboard thermostat set up in Home Assistant through the HomeKit integration. It works for setting the setpoint and viewing current temperature. The Mysa app has home/away/vacation settings but I can’t set these modes in Home Assistant.

Is this a limitation of being connected through HomeKit? Is there any way to add home/away functionality to this thermostat through Home Assistant?