Configuration settings from scene

Is there any way to change configuration setting directly from scene with luup code? I want to change temperature settings on ST814.

I believe it’s possible using the below command, but you need to know what variable to modify. I never tried this, so I don’t know if it will work or not.

luup.variable_set ("urn:micasaverde-com:serviceId:ZWaveDevice1", "VariablesSet", <value>, <device#>)