[Cosmic Tortoise]

To add on to this, I believe you can't bind two different chat messages to the same key.

For instance, I cannot bind "Hello!" and "Gabe gay" to the same key and have them both appear when I use the bind.

When binding two actions, use a semi-colon to link two actions on one key.  You can easily tell you can do this due to many players on TTT binding radio_Traitor and a Say message when they call out traitors in TTT.

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Here I have bound a Say command quoting a famous song which relates to TTT for use of a certain traitor weapon, and bound it by using the semicolon to apply Act Dance. The semicolon is placed directly at the end of your Text, but remains inside the Quotation marks, allowing a double action on a single bind.

http://i67.tinypic.com/35jja51.jpg