The  FMS/EDIT  command invokes an interactive utility that allows the
  user  to create  and  edit  a  form  on  a  VT100-compatible terminal
  screen. The Form  Editor is similar in semantics to the Form Language
  and produces an  equivalent output file.  The  command takes a single
  parameter, the form  specification. The default  input  file  type is
  FRM, and  the  default  output  file  type  is FRM.   The  /FORM_NAME
  qualifier switches the default input file  type to FLB.

  Example: FMS/EDIT FORMLIB/FORM_NAME=AFORM

     The  form  AFORM is taken from the library FORMLIB.FLB to be
     edited.

1  –  Form specification

  A  form  specification  consists  either of  a form file containing a
  single FMS form or a library file with the /FORM_NAME qualifier which
  is used to name a form from the library.

2  –  Qualifiers

2.1    /FORM_NAME

  library_spec/FORM_NAME=form_name

  Specifies  a  form  from  a  library.  The qualifier must immediately
  follow  the  library name. You specify the name of the form that  you
  wish  to  edit  after  an  equals  sign.   The presence of /FORM_NAME
  changes the default input file type to FLB.

2.2    /OUTPUT

  /OUTPUT=file_spec (D)
  /NOOUTPUT

  The  /OUTPUT  qualifier  allows you to specify a name for the  output
  file from the editing session. If the file specification  is omitted,
  the  output  file  name  is  the same as the input file  name, if the
  input is from a form file.  If the input is from a  form library, the
  output file  name is  the same as the name of the  form being edited,
  with the file type FRM.  The /NOOUTPUT qualifier  causes output to be
  discarded.