I have figured out a work around…. by setting $return to true and using a string replace to get the microdata mark up into the breadcrumbs.
It would be a nice new feature if you integrated this sort of functionality for rich snippets in google 🙂
Hello there Mtekk… great plugin but now that I cannot put li elements into the settings how can I use structured microdata markup on my li elements. I am setting my breadcrumbs up as per this post.
http://support.google.com/webmasters/bin/answer.py?hl=en&answer=185417