Are you trying to announce an event or something else but the players don't stop talking?
Then i show you the ChatBlock, a very lightweight plugin that you mute the chat to everybody except you!
This plugin works for 1.8.X and 1.7.X , just don't use development builds to avoid errors!
Permissions:
chatblocker.block
Commands:
Block the chat:
/chat block
Unblock the chat:
/chat unblock
