F1  Reject Character
       To build a good font file, bad characters should not be trained.
       Characters scanned at poor contrast level or characters with noise 
       or specks, should be rejected from the font file.

F3  Next Line
       Press [F3] to skip to the first character of the next line
       of text. This option is extremely useful for retraining specific
       characters in Expanding Existing Font.
 
F10 Exit and Save
       Press [F10] to save the newly trained characters into the font file
       and then return to Main Menu.

ESC Abandon
       Press [ESC] to abandon the whole session so that none of the 
       characters trained will be saved to the font file.