Display Name: This is cosmetic and is only shown on the Relays page on our website.
Port: This is a UDP port of your choice. It must be equivalent to the port you opened in the firewall and network configuration step prior.
Max Players: How many players should be allowed to connect to your relay?
Location: This is cosmetic and is only shown on the Relays page on our website. Locations used for connections are detected automatically.
Flag: This is cosmetic and is only shown on the Relays page on our website. We use the ISO-3166-1 alpha-2 code system for countries. You can view an entire list
here