Pairing a Hue Dimmer with a group of Hue Bulbs

[GerdRuetten]

Dear all,

i need your help :-)

I have a Hue Dimmer and five Hue Bulbs.
Dimmer and Bulbs are integrated in z2m without problems.

I put in z2m the five bulbs in a group.

How can i now pairing the dimmer with this group over the z2m-GUI?

In the dimmer-device in the Bind-Tab i see this:

The docu under https://www.zigbee2mqtt.io/devices/324131092621.html#binding says, i musst unbind it from the coordinator and bind it to the lamp ... but i have a group.

Can sombody explain me, how to do it over the UI.

TIA

Best regards
Gerd