Bukkit

Step one. Pick up a map with id 0. ("map_0")

Then type the command /tq

The menu will now open.

By right clicking the selected item/page will scroll one line down. Shift/Sneak right click will scroll up.

By left clicking you will fire the menu item to the plugin (this is TotalQuest.) A new menu will come up. See those input fields?

Type in chat what ever you want and press enter.

There ya go. The text you've entered is not send to chat but into the field.