Share certain networks with only 1 SpeedFusion tunnel

Has anyone found a way to create a 2nd SpeedFusion tunnel through InControl2 and only share certain networks with the two devices chosen in the new tunnel?

If I share the attempt to share the network using the OSPF Advertising, it will create a network conflict with the first tunnel devices.

I only need to create a new SpeedFusion tunnel between two separate devices for networks not advertised, and the IPSEC tunnels do not failover fast enough.