there is initial commit in OpenZWave to support this device

https://github.com/brouwer/open-zwave/commit/988f6dda98e6090adaa8706e8051b41d432cf8e5

you can manually add fgrgbw442.xml to Config/fibaro folder,
and edit/add to manufacturer_specific.xml lines:

<Product config="fibaro/fgrgbw442.xml ...

looks like you have to wait - no supported yet by domoticz/openzwave

There is - script to controll ncplus decoder using domoticz :)

code from https://github.com/HubertReX/Flask-Home-Automation

script: send_key2ncplus.py

just edit, set:

HOST = "NCPLUS.DECODER.IP"
PORT = 8080
UUID = "12341234-1234-1234-1234-abcabcabc"

and then from raspberry

python send ...