That's actually brilliant, so you could filter by "Not permit required" and get the route plotter to work properly around those systems if you don't have the permits. I recently had to manually plot 1200 Ly of a 5000 Ly trip to the Jellyfish Nebula because of a large swath of permit locked space....this would have been so handy.
I mean...this idea is really brilliant, why hasn't it been done already?!