Vortex Sound Research

According to the basic midi chart for tr8s, CC 70 should trigger the manual auto fill. I found an alternative midi implementation chart online that has an asterisk next to the row that corresponds to manual auto fill trigger, which says that LocalSW needs to be selected as Surface (?) In doing this, it kills audio on the tr8s, and I assume just turns it into a controller. I want to trigger auto fills with my midi footswitch while using my hands on a Bass.