Kerio VM on SDX Pro

I have ordered SDX Pro and plan to run kerio Control VM for Bandwidth Control & Firewall.

How will I access Speedfusion VPN via Kerio?
The goal is to use Kerio to route only critical Traffic through Speedfusion (we have 1Tb Fusion Hub limit).

Your VM will have a virtual NIC IP on the bridge interface of the SDX Pro.
The VM will then get an IP from DHCP or you can set a static in the same subnet at the LAN of the SDX Pro.
your can then use an out bound rule, priority or enforced I would use, to send traffic from the VM to the speed fusion tunnel or any other interface you would like.