what does this bouton do?

[Flying Ace]

when you join a server thares this buton thats says" join server ip "   or some thing like that and it brings up this page thats says " server pass and server ip code " i need to know what it does :3

[Ad Bot]

[buldier(enginner)]

join a server from it's IP? i dunno

[Starcraftman]

join a server from it's IP? i dunno

You are correct. It lets you join a server by its IP address rather then by selecting it from the list.