EGA Lines                                             Alt + F9
 This command  toggles  the  display  between 25- and 43-line
 modes (on an EGA) or 25- and 50-line modes (on a VGA).

 With  the  number of lines  increased, you'll be able to see
 more on the screen when you're in the Commander.

   Note:  On some systems, the ansi.sys driver (loaded in the
          config.sys  file) will  limit  DOS's  output to the
          first 25 lines of the screen. If  you  want  to use
          more lines, you can remove the  ansi.sys  driver or
          replace it with compatible version.