I was curious, if you do have an integration with this switch:
ED-10015 Draadloze schakelaar Zigbee 4 groepen zwart
It is possible to connect it to Hue, it all works fine (so it seems), but apparently it isn’t visible in the Philips Hue app.
Could it be, that it will be visible in the Hue Essentials app, using a Hue bridge?
If not…could it be visible when using Conbee II (if compatible), as I am heading over towards Home Assistant with Conbee II at the moment…
Third party switches cannot be configured on a Hue bridge. Only official Philips Hue switches and Friends of Hue switches can be configured on a Hue bridge. Other switches like this one can be paired with the lights and bridge but the switch will never be visible in the app. Just like for example the IKEA switches: How to connect IKEA TRÅDFRI smart controls to a Philips Hue bridge?
At the moment it is not supported in Hue Essentials, so if you want to configure it you need to do it using button events. You can find the button events here: Button Events - deCONZ REST-API
This switch is on the wish list for future development and a better UI could be added in the future.