SPDI/SPUI Interchange In Concept Station

Does anyone know how to create a SPDI/SPUI interchange in Concept Station?

When I try to make bridge ramps that are inline with each other I get the a message saying "Unable to fit ramp into road toplogy. Ramp must fit inside existing primary bridge range." Is there another way to make this type of Structure in Concept station?

Thanks,

Mitch