There is a community created edge, Driver that will allow you to change the settings on most Z wave devices. You add the driver to your hub, switch your device to it, make your changes and request that they be saved to your device, and then change back to your every day driver for regular use.
Be aware that many battery powered Z wave devices will only update their configurations once a day, or at best every four hours, so you may not see the changes take affect for quite a while. They will just stay queued up until the next time the device is ready to accept them. (if there is a way to get the device to accept the changes immediately, it will be detailed in the user manual.)
If you have any further questions about this utility, ask in the author thread where you will get the link to download the driver.