Additional DNS entries in General Setup would be good for 3 or more WAN's
For multi-wan with 3 or more WAN's, it would be good to have additional DNS server fields in General Setup.
Currently there are 4 possible entries.
With 3 WAN's for example, assigning 2 different DNS servers to each of the WAN gateways would require 6 total entries in General Setup
because pfSense recommends that each gateway be assigned its own unique DNS servers.