For list of commands, see below.
Type a message in the input box and press enter/return. Some commands that are available...
set/get BLANK - set or get an "environment variable" for this server. Special values for BLANK... name - your display name.
describe - server replies with description of what it does.
quit - close connection with server.
connect - start new connection with server.
quiz start - start a quiz, server sends the first question.
quiz next - go to next question in the quiz.
quiz answer - give answer to most recently displayed question.
round_trip_time - checks the time for a message to be sent to the server and get a response, then puts this in the chat.