Here is the solution from the great support staff (Chris) - it worked great. Basically resets the configuration/system tab on the admin manager and restores ability to have a zooz 700 zwave stick instead of a zmatter. One additional step I found was to re-enable insteon and zwave on the configuration/system tab. Do not do migrate to zmatter.
1) ssh to Polisy
2) run command: sudo rm /var/isy/FILES/CONF/0.UCF
3) close ssh (unless you want to keep it open for something)
4) Restart IoX
5) Go to Configuration Tab in Admin Console, you should see a button "Migrate to ZMatter Z-Wave", this indicates that you are now currently using original Z-Wave. (Don't press the button obviously)
6) Update the values in the Configuration Tab to what they were before
7) Under the Z-Wave top level menu you should see all the options (like add, remove, etc.)
See my thread from a few weeks ago. My issue was very similar - I was going from isy to polisy.
The last response in the thread is the solution I used that worked perfectly. Not sure if eisy supports the zooz stick or only zmatter, but worth a shot. Polisy supports both.
