!BRIEF [options] -ref <refmol> -fit <fitmol> -out <imagefile>
!CATEGORY file options
    !PARAMETER -ref
      !ALIAS -refmol
      !TYPE string
      !REQUIRED true
      !BRIEF ref mol file name
    !END
    !PARAMETER -fit
      !ALIAS -fitmol
      !TYPE string
      !REQUIRED true
      !BRIEF fit mol file name
    !END
    !PARAMETER -out
      !TYPE string
      !REQUIRED true
      !BRIEF output image filename
    !END
!END
