The  FMS/LIBRARY/INSERT  command  places  the  specified  form in the
  output form library. Input forms do not replace forms that  have  the
  same  name in the form library. If any of the input files contain the
  same name,  the  first form specified is inserted in the library. The
  default input file  type is FRM,  and the default output file type is
  FLB.