Solved /rules and /help in one window open

Hi i see in some servers when you type /help or /rules open a windon in screen who show the rules and the help of the server.
Also when you enter the server show an agree and desagree window.
Someone know what pluggin is that?
I tryed to search and i couldnt find bought os the plugins.

Thanks

 

Thanks a Lot.

 

The agree and Disagree one is

Rules GUI for Rust | Oxide