Thanks for the help. I have attached the pictures.

Hi. I would expect that indeed. But there is only one switch visible.

Hi, I have installed Domoticz on my Synology NAS with jadahl.com. I have two devices: 1x TZ36D, Z-WAVE Dual Wall Switch. 1x Philiotech PAN04 dual relay module. Both devices are visible as switch with just one switch/releay. Also, when i click the relay switch sometimes it switches both relay on/off ...