Routing signals in a MPC4000 with 8 out expansion card.

I have a MPC4000 with the 8 out expansion card installed and working fine. I need to get two separate mixes out of the MPC4000. My problem is I can't seem to figure out how to route tracks to two outputs (one out of the standard L/R outs and another out of the 8 out expansion slot at the same time.)

Using the mixer, I'm just able to select one output, not multiple. Is there a way to get around this?

Thanks

Clark