EDIT

        [SIC\]EDIT [File_Name]

    Without  argument,  EDIT  dumps  the  Stack on a file named STACK.DEFEXT
    where DEFEXT is the default macro extension specified by the program  or
    by  the user using command SIC\SIC EXTENSION, and then calls a text edi-
    tor to edit this file. If a file name is given, the  specified  file  is
    edited.

    The  editor  to be chosen is defined by the logical name GAG_EDIT, which
    you can define in your $HOME/.gag.dico file. Command SIC EDIT  NewEditor
    can also be used to re-define the choice of the editor.