Hi Todd,
According to my research and test, this is not feasible of Office 365. However, could you please provide the blog link for me so that I can do more research on it?
Moreover, since this case is more related to Forefront Identity Manager, I would suggest you to contact with our Forefront Identity engineer to get professional support on this. Please click on the link below to access to the support forum.
http://social.technet.microsoft.com/Forums/en-US/home?forum=ilm2
Thanks,
Yang Yu