How to make a button working with two integrations?

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Screenshot_2022-03-02-09-57-44-374_io.homeassistant.companion.android
Screenshot_2022-03-02-09-57-44-374_io.homeassistant.companion.android1080×2400 92.1 KB

Hello,

As you can see on this screenshot, i have a zeegbee RGB light which i can command with HAss.
My problem : this light is also connected on a relay on another integration1 and i would like the switch to put on or off the relay instead of sending a zigbee command wich will be used only to change the color.

I didn’t find in the documentation how to change it by code or UI.

Could anybody help me find this doc or tell me if it is (im)possible ?

Thanks for your reading.

Regards.

(1) a wall switch, integrated with a HACS integration - GCE IPX800 for information