I was wondering if somebody could give a link for instructions on how to use the "backup" VPN feature on a RV082 router.

Currently we have a gateway-to-gateway VPN established between two RV082 routers in two different locations (using only one WAN port on each). We are looking into getting an additional internet connections for each site to minimize downtime (hence beging using two WAN ports on each site). However, I have tried several ways to get the backup VPN feature to work with no luck.

I see when I go to the "Advanced Options" for a VPN tunnel that you can specify a backup VPN, but I'm not sure how to configure this and all the documentation that I have seen seems pretty vague on the subject. Any ideas?