Its for servers that are hosted on a different service but want to use minehut to gain players and advertise
#External Server
viscid rapids
merry wolf
it doesn't have anything, consider it a server type that just tells minehut "this server "coolserver" is at "play.coolserver.example"
when you switch to External Server you just get a simple dashboard where you fill in the ip of your server, read the external server guide to learn more