v2v kvm

In the RHEV Sys Admin Guide, section 6.9.1, it states:

"The export domain enables you to add pre-configured virtual machines or domains to a Red Hat Enterprise Virtualization Manager system."

I have a number of KVM guests that run on a host outside of the RHEV-M control.   I would like to bring one of these pre-configured guests into the RHEV-M system.

Are there any instructions for bringing foreign guests of the KVM variety into RHEV-M?

I have RHEV 3.0 beta 4, and an export domain attached to the datacenter.   I have tried just copying the image file to the NFS directory, but that is not recognized by the RHEV-M gui.

Thanks