You can make changes to the character via editing the demo file, but that's a different technique. When playing back a demo, the Client is just a fancy media player (except better with freecamera). It'll show you anything that's technically possible to code into a demorecord. So you have access to all costumes, emotes and powersets for the purposes of editing/coding a demo file.
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The Master said: "It is all in vain! I have never yet seen a man who can perceive his own faults and bring the charge home against himself."
>Analects: Book V, Chaper XXVI
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The Master said: "It is all in vain! I have never yet seen a man who can perceive his own faults and bring the charge home against himself."
>Analects: Book V, Chaper XXVI