F1GP-Ed Documentation

Datafile
   Save every current setting in the File Editor and Memory Patch windows
to an F1GP-Ed datafile, which can be reused at a later date.

F1GP Binary
   Save every current setting in the File Editor windows directly to the
main binary file used by the game.  Then when reloading F1GP all your
changes will take effect.  This option also makes a little change so you
can switch screens by clicking in the top-right corner of the F1GP screen.

Memory
   Save every current setting in the File Editor windows directly to memory
(if F1GP is running in the background).  This options also removes certain
file checksums used by the game and also allows music modules to be played
in the background without interruption when navigating the game menus. For
best and expected results, use this option while F1GP is at the main menu.

All
   Save to the current datafile, the F1GP Binary and to memory all in one
go. Effectively, this does the same as selecting all of the three items
above separately.