J29 is correct. If you look at the flight you choose it will show in the far right side what class you are OK for. It will always say OK in Y for a domestic flight. Remember that for a flight over 3:45 it is a window or an isle. Put those preferences in when booking and you should be fine.
Flights that are considered an Ocean Crossing allow booking in FC just like what is required for a INTL DH per the PWA.
Happy DV8ing
FtB is truly a genius that has way to much time on his hands.