Chat widoczny dla graczy w zasięgu 150 kratek

on chat:
    cancel event
    loop all players:
        if distance between player and loop-player <= 150:
            send "%message%" to loop-player

Zdaje mi się, że w pluginie essentialschat jest taka opcja:

chat:

  # If EssentialsChat is installed, this will define how far a player's voice travels, in blocks.  Set to 0 to make all chat global.
  # Note that users with the "essentials.chat.spy" permission will hear everything, regardless of this setting.
  # Users with essentials.chat.shout can override this by prefixing text with an exclamation mark (!)
  # Users with essentials.chat.question can override this by prefixing text with a question mark (?)
  # You can add command costs for shout/question by adding chat-shout and chat-question to the command costs section."
  radius: 0

Zmieniasz radius z 0 na 150