How to enable facial recognition in wired video door bell?

Anyone know how to turn on facial recognition of known users in wired video door bell. The documentation indicated that you can, but after much searching I can’t find how and where.


Interested in this as well.

Which model is this about?
As far as I know only the first eufycam had facial recognition.

I would like to know this as well

I don’t think it will distinguish between known people and and unknown people. But if you go into doorbell settings, motion detection and turn the slider to the left which is human only, this scans human faces for detection.