Texas Instruments 4000M - Manual (Page 131)

LFM Colors Menu
Pressing C at the LFM Setup Commands menu causes LFM
to display the Screen Color Setup menu at which you can
change the colors of the
LFM menus displayed by a color
LCD or an external monitor connected to your computer or
change the gray shades of the monochrome LCD.
Execute Commands Menu
Pressing E at the LFM Setup Commands menu causes LFM
to display the Execute Commands Setup menu at which
you can type the filename extension, program pathname,
and prompting parameters for executable programs you
want to respond when you press F9 as described in F9 Go
Key.
Function Key Commands
7-14 Laptop File Manager