We recommend switching over to the new JS integration of Home Assistant to have all of the advanced settings exposed.
Zooz products are now officially integrated with the new ZWaveJS integration of Home Assistant. If you're experiencing issues with accessing the advanced settings of your ZEN30 we would recommend first updating to the JS integration then excluding and re-including your device to your network in order for it to be recognized correctly.
For earlier integrations:
Regardless of which firmware version you have, you can access the advanced parameters by loading the XML file for the device using the instructions and code in the Home Assistant Device Specific database; just scroll down to the section with the Double Switch ZEN30 code. Remember to stop the Z-Wave network when updating the file, and make sure to exclude the Double Switch from the network before loading the XML file. The XML file should be good for any of the device firmware versions.
If you have any questions or issues during the process, please let us know! Our team will be happy to help.