Many users are confused by the new EFIS/Map and Over/Under EICAS
displays that are part of the 800/900 addon. What happened to the
original PFD/ND and Side by Side EICAS and EFIS displays?
Options for the EFIS and EICAS can be found in the PMDG Menu in
FS9 and are also coded by airline into the aircraft repaints as part of
the 800/900 upgrade to allow users to have accurate cockpit display
settings. If you wish to change the style, simply access the PMDG menu
while running FS9 and make the changes as desired.