Metadata templates isn't something that's offered in the Mac Beta. It is a feature that other people have requested as well. I know that Adobe Photoshop Lightroom has functionality for metadata templates. You can see some screenshots here: http://www.peachpit.com/articles/article.aspx?p=1151024&seqNum=2.
What do you think of that as an example for how we might do this in Audition?
Yes!! That looks like it would be a great feature. Especially when your editing many different files under the same author.
That would make my work a whole lot easier if it were included in Audition for Mac.