on right click with sign:
  "%lore of player's tool%" contains "channel":
    cancel event
    make player execute "/chat"

#on click:
  #message "%lore of player's tool%"
  #"%lore of player's tool%" contains "channel":
    #make player execute "/chat"

command /chat <player=%player%>:
  aliases:/talk,/channel,/channels
  trigger:

    wait 3 ticks

    if player argument is not the player:
      if executor does not have permission "rankspank.admin":
        make player execute command "/chat"
        stop

    set {_text} to "s;3;i;381;n;{@itemcolor}Global Grid Network;l;{@lorecolor}Click here to talk||{@lorecolor}on the Grid wide Network!;c;sudo %player argument% g"

    set {_text} to "%{_text}%;s;5;i;368;n;{@itemcolor}Server Network;l;{@lorecolor}Click this to talk ||{@lorecolor} on Server channel;c;sudo %player argument% s"

    set {_text} to "%{_text}%;s;7;i;397:3;n;{@itemcolor}Talk Nearby;l;{@lorecolor}Click here to talk||{@lorecolor}local to nearby players;c;sudo %player argument% l"

    show "%{_text}%" with 1 row named "<blue>Select a Chat Channel:" to player argument