Messages typed by other users will also appear in the upper half of the window. There are three pop-up menus in the lower left corner of the Chat window, Options, Filters, and Hilites. The first option specifies whether the text input area of the chat window appears at the top or the bottom of the chat window. The default is to appear at the bottom of the chat window. The second option specifies whether voices are on.
Voices allow chat messages to be spoken when they appear in the chat window.
A user that is filtered will not have their chat messages displayed in your window. This can be a way of ignoring a user who is being annoying, or just a way of ignoring users if the chat room is very busy. A user that is hilited will have their messages appear more prominently than other users. It can be a way of bringing greater attention to specific users that you are conversing with.