Using multiple databases on the same freeRadius instance

Hi Guys, I am wondering if there are any way to use two different databases within the same freeRadius instance? Currently, I am using the default MySQL schema for AAA. I am inserting additional attributes in the pre-proxy configuration of my site. The attribute information comes from the same database. This works perfectly. I now have a site where I need to do the same but the additional attribute information needs to come from a different database (existing database on the client side), other than the AAA database. Is there a way to do this? Regards Gabriel