Veeam backup copy from remote location

I have veeam standard running in one location wich produces monthly backups. Instead of transporting the backup device backwards & forwards I want to be able to use Veeam backup copy.
I have installed a trial of VEEAM enterprise on a server in my office
setup WAN accelerators for local &the remote office (running standard)
I can import backups from the remote repository into the enterprise version
But I cannot get a backup copy job to run...
if I select the virtual machine from the infrastructure - all I get is no restore points. I have left it running continuously  & with the monthly backup finishing it still said no restore points
Enterprise does not pickup the VM from the imported backups
There is no local backup job to import it from as the backups are run on the standard version in the remote office.

All I want to do is copy the monthly backup from one office to another using the WAN accelerators as we have very constrained bandwidth in one location