I've stubbed out vias for all my power and ground nets using the auto fanout option. My ground pin vias connect to a ground plane. When I run the autorouter, it insists on connecting a lot of these ground pins together, even though they already have via connections to the ground plane. To eliminate these nets from autorouting, I've created separate design rules for each of the power and ground nets that have none of the routing layers enabled. However, this causes error markers to appear on all my existing traces and vias, and it's tedious when I want to go back to manually routing these. Is there a way to eliminate nets from autorouting but still allow them to be manually routed and not create error markers? Logically this would be done through the View->PCB->Nets panel or in the autorouter setup, but there doesn't seem to be such a feature.