HP 49g+ User Manual page 17

the blue ALPHA key, key (7,1), can be combined with some of the other keys
to activate the alternative functions shown in the keyboard.
For example, the P key, key(4,4), has the following six functions associated
with it:
P
Main function, to activate the SYMBolic menu
„´
Left-shift function, to activate the MTH (Math) menu
... N
Right-shift function, to activate the CATalog function
Page 1-5