I believe the ZWave Control Panel in Home Assistant is OpenZwave Control Panel (OZWCP), wrapped in a Home Assistant page. I used the actual OZWCP to join my Hubitat to my already existing ZWave network.
https://community.hubitat.com/t/joined-the-hubitat-usb-stick-to-my-st-homeid/589?u=csteele&source_topic_id=677
In my personal opinion, OZWCP is unsuited for a device targeted at the mainstream. I don’t know about you but I’d like HomeAutomation stuff to be as popular as an iPad. Home Assistant isn’t that product. I’d like Hubitat to be that product. In SmartThings, we’ve only seemed to need ZWave Tweeker to perform this “custom Command” function. Perhaps getting that ported would be a better goal.
