Yes, I have used custom categories, which appear at the top of the gallery when it's clicked, which is helpful.

But I was hoping to be able to rename the galleries themselves so the tool tip would show a custom name that would be more informative to the user than "Custom Gallery 1" or "Custom Autotext." And there seems to be no way to change the gallery icons.

Even I have difficulty remembering what's on these galleries -- and I am designing the template!

So there's no hope to make a user-friendly QAT? "Abandon all hope ye who enter Word 2007?"