A family of Microsoft word processing software products for creating web, email, and print documents.
UPDATE - I found a rather odd work-around...
I send the text I want to edit to myself in an e-mail (the e-mail body). My e-mail is set to reply with a specific color. When I respond to the e-mail, and edit the text, all of the new text is in the reply color as I wanted it to be!
With the new text in the e-mail reply color, and the original remaining text is in the color from the main document, I then cut and paste the entire edited text back into the main document.
It is a bit cumbersome, however this accomplishes exactly what I need to do. It is curious to me why Word cannot perform this simple action.