Send Scene with Fibaro switch 223

[Nephylim]

Hi there,
I am trying to trigger a scene unsing a fibaro wall switch. It configured as a momenatry action switch.
I now configured point

29. S2 switch - scenes sent: 8

So it should send a scene id after pushing and holding the button. I had no luck adding a new device that way. also in the scene activation devices domoticz only recognizes the normal switch. Can you tell me what I am doing wrong?