Join Date: Mar 2009
Location: NYC
Programs: AS MVPG, DL KM, Bee Six, Bonvoy Plat, Choice Plat, BW DS, Avis PC, Natl Exec, Greyhound Road Rewards
Posts: 19,971
There are no additional seats to be selected with Blue Extra. You can still purchase EMS if you'd like. The main things you get with a Blue Extra fare is free same-day changes, earlier boarding, and fast pass security.
-J.