HeroChat Help! How to i make my friends [BUILDER] etc...

So heres my config files for herochat

Code:

globals:
    separate-chat-log: false
    incoming-tell-format: '&8From {player}: &d'
    censors:
    - \bu+\W*m+a+d+(\W*br(a|o)+)?
    - some_other_word;replacement
    plugin-tag: '§e[HeroChat] '
    craftIRC-prefix: '#'
    outgoing-tell-format: '&8To {receiver}: &d'
    default-channel: Global
    default-message-format: '{color}[{nick}] &f{prefix}{player}{suffix}{color}: '
    craftIRC-message-format: '[{nick}] {player}: '
channels:
    Staff:
        color: LIGHT_GREEN
        nickname: Staff
        permissions:
            speak: []
            join:
            - admins
            - mods
        message-format: '{default}'
        craftIRC:
            game-to-IRC: []
            IRC-to-game: []
        worlds: []
        password: ''
        lists:
            bans: []
            moderators: []
        options:
            hidden: true
            shortcut-allowed: true
            auto-join: true
            local: false
            cross-world-chat: true
            join-messages: true
            forced: false
    Local:
        local-distance: 100
        color: YELLOW
        nickname: Local
        permissions:
            speak: []
            join: []
        message-format: '&f{prefix}{player}{suffix}{color}: '
        craftIRC:
            game-to-IRC: []
            IRC-to-game: []
        worlds: []
        password: ''
        lists:
            bans: []
            moderators: []
        options:
            hidden: false
            shortcut-allowed: true
            auto-join: true
            local: true
            cross-world-chat: true
            join-messages: false
            forced: false
    AlertSystem:
        color: ROSE
        nickname: alert
        permissions:
            speak:
            - admins
            - mods
            join: []
        message-format: '&4[ALERT]{color}: '
        craftIRC:
            game-to-IRC: []
            IRC-to-game: []
        worlds: []
        password: ''
        lists:
            bans: []
            moderators: []
        options:
            hidden: false
            shortcut-allowed: true
            auto-join: true
            local: false
            cross-world-chat: true
            join-messages: false
            forced: true
    HelpMe:
        color: LIGHT_BLUE
        nickname: h
        permissions:
            speak: []
            join: []
        message-format: '{default}'
        craftIRC:
            game-to-IRC: []
            IRC-to-game: []
        worlds: []
        password: ''
        lists:
            bans: []
            moderators: []
        options:
            hidden: false
            shortcut-allowed: true
            auto-join: true
            local: false
            cross-world-chat: true
            join-messages: false
            forced: false
    Global:
        color: BLUE
        nickname: Global
        permissions:
            speak: []
            join: []
        message-format: '{default}'
        craftIRC:
            game-to-IRC: []
            IRC-to-game: []
        worlds: []
        password: ''
        lists:
            bans: []
            moderators: []
        options:
            hidden: false
            shortcut-allowed: true
            auto-join: true
            local: false
            cross-world-chat: true
            join-messages: false
            forced: false

So how do i make so that when
I speak it says [ Admin] Blah
Whem my moderators speak it says [ Moderator]
and when guest speak it says [ Guest]
Also when they speak how do you make it go into the global chat room? without saying [GLOBAL] after it
how do i change that?