It is not compatible with FGU, but we have a new ruleset that is.
https://www.fantasygrounds.com/forum...l=1#post552046
It is compatible with both FGC and FGU, and currently Sevrick is working on libraries with data from the books.
Please download the ruleset from the above link, and if you have any questions or feedback, reply to that same thread
And yes it does have dice support