Plugin ArChatDistance :

Commands :
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/ChatStaff On
/ChatStaff Off
/ChatStaff Player <player name> <on\off>
/ArChatDistance Reload
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Permissions :
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archatdistance.* - All Permission
archatdistance.chatstaff - For ( /CHatStaff On - Off )
archatdistance.chatstaff.other - For ( /ChatStaff player <player name> <on\off> )
archatdistance.reload - For Reload
archatdistance.see - For See Chat
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You can change the chat distance, staff ON message, staff OFF message, and the staff chat format in the config!

File Config :
Chat-Distance: 50 # Distance

Message-Staff-On: "&aChat Staff On Shod!" # Message Staff On
Message-Staff-Off: "&cChat Staff Off Shod!" # Message Staff Off

Format-Staff-On: "&8[&cStaff&8] &f%prefix%%player%%suffix%&7: &f%message%" # Chat Format Staff On