Dimmer 2 with illuminated push-buttons (Busch Jaeger 2020 USGL)

[Jernst 0]

I'm trying to get the dimmer 2 working together with the Busch Jaeger 2020 USGL with illuminated push-buttons.

Without the dimmer 2 the push buttons on the switch are illuminated when not pushed in.

When I place the dimmer 2 in the circuit I can control the lights like supposed to but the buttons aren't illuminated anymore. Anyone got an idea how I can get those illuminated?

I've tried both wiring diagram 1 & 2 (Single Switch)

 

Link to push-switch: 

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[rappenze 1]

According to 

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 there are different wiring options, see section Wiring diagram.

 

The one to the right should illuminate the button always, even with a fibaro module in between. Only drawback is, that the button will be illuminated even when the light is on.

Unfortunately I was not able to find a more detailed manual, but probably this helps already.