They only took 2 astronauts up meaning that only 5 would land on the mid deck which is possible but not normal
I don't know how many you "took" up, but in "my" STS-401 cockpit were 4 Astronauts during launch.
OK, did some research on google, wikipedia and L2 (should have done it before asking):
Planned was to have 7 seats on middeck, so SSM2007 is perfectly correct here. Would be nice to have the possibility to switch to all 11 positions with F4 on landing, but I do not know how complicated this would be to implement. It is not important, only nice.
OK, I better stop trashing this thread, Armin