Question PROXY-protocol HAProxy

[Lexz]

Server operating system version

Almalinux 8.x

Plesk version and microupdate number

18.0.59 Update #2

Good afternoon,

I searched the forums but didn't find the answer yet.
We are planning to run some Plesk machine behind a HAProxy with the PROXY-protocol.

Is there information how to enable this? Or some working configuration examples?

Thank you very much in advance.