HomeKit Raise/Lower Thermostat by Increment?

[Jayl00]

Is there any way I can raise or lower the temperature setting on my thermostat (Lux Kono) by one degree at a time from Home App? This would work just like asking Siri “Lower/Raise the thermostat by one degree.” I want to assign couple of buttons on my switch to raise or lower the temperature setting from whatever the current setting is, instead of setting it to a specific degree.

Or, better yet, can I somehow assign a Siri command to a button in home app?

TIA