Please provide your hub model (C7, C8, etc.) and its platform version from Settings>Hub Details.
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Sounds like a question for @bcopeland -- looks like the driver just doesn't offer parameter 2 settings. Not sure if this is intentional.
Regardless, with or without support in the driver, you could use the Basic Z-Wave Tool to set this -- or any -- parameter using the information provided in the manual: parameter number, desired value, and byte size.