Shift E+2

hey there y'all. i know that there are some aircraft in FS2004 that have features operated by the SHIFT E+2 key strokes. i cant get it to work. whenever i do that, its the same as just pushing SHIFT 2. why this way???
Flight Simulator and other chat
https://forums.simviation.com/phpBB3/
https://forums.simviation.com/phpBB3/viewtopic.php?f=20&t=48312