This switch is not yet in Production. I just connected it temporarily to check OpenHAB recognition. @chris, I should be able to test a temporary configuration if needed.
As your device has the same type and id as the existing one you need to limit that one to firmware max=2.9 and create a new database entry with firmware min=3.0.
Use your xml to create the new entry and add the new config parameters and all other necessary information.
Watch the github repo for the zwave binding, as soon as you see the changes there a little while later those changes should be in the zwave 2.5 snapshot binding.
You need to uninstall the current binding, drop the downloaded 2.5 snapshot zwave binding into your addons folder, delete the Things of devices you have changed and add them back (no exclusion/inclusion, please).