NICKを全員一斉に変更したいがやり方がわからない

loop all players:
    add loop-players to {_random::*}
    set {_kekka} to a random element out of {_random::*}
set {_kekka}’s tab list name to “&a&l%{_kekka}%”
set the {_kekka}’s display name to “&a&l%{_kekka}%”
delete {_kekka}
delete {_random::*}

loop all players:
    add loop-players to {_random::*}
    set {_kekka} to a random element out of {_random::*}
set {_kekka}’s tab list name to “&a&l%{_kekka}%”
set the {_kekka}’s display name to “&a&l%{_kekka}%”
delete {_kekka}
delete {_random::*}

loop all players:
   chance すきなかず%:
      ランダムなプレイヤーにやりたいこと

loop all players:
   chance すきなかず%:
      ランダムなプレイヤーにやりたいこと

loop all players:
  add player to {_random::*}
set {_kekka} to a random object out of {_random::*}

loop all players:
  add player to {_random::*}
set {_kekka} to a random object out of {_random::*}

loop all players:
  add loop-player to {_random::*}
set {_kekka} to a random object out of {_random::*}

loop all players:
  add loop-player to {_random::*}
set {_kekka} to a random object out of {_random::*}

set {_kekka}'s tablist name to "&a&l%{_kekka}%"
set {_kekka}'s display name to "&a&l%{_kekka}%"

set {_kekka}'s tablist name to "&a&l%{_kekka}%"
set {_kekka}'s display name to "&a&l%{_kekka}%"

set {_result} to random player of all players

set {_result} to random player of all players