Device not showing up

[PvP1985]

Hi New to Domoticz and managed to get it working on my Rasberry Pi 3b. I have a Razberry V2 plugged in the pi and 'installed' on Domoticz via OpenZWave USB (/dev/ttyAMA0). I've added a node (Fibaro Double Switch 2). Both show up on the hardware section. But now i am stuck on how to add it to devices. Only the Razberry V2 is showing up with a list of ID(x). I expected that the Fibaro Double Switch 2 would also show up in the same section with it's unique set of ID(x).

The switch does work. I've gone to the configuration panel 'OpenZWave Control Panel' and played with instance 1: swith on and off. The light goes on and off as I do that. But I want to add the device to a scene. Ultimately I want the light in the bathroom downstairs en upstairs to trigger the central ventilation. But now i am stuck.

So a few questions:
- Which forumsection is best for this type of question?
- How to procede and add my Fibaro Switch so I can add it to groups and scenes?

Thanks in advance!