PLP    Plot profile on screen.  Default is chemical and magnetic.
        Append N for nuclear only; M for magnetic only; T for magnetic
        angle.  Append A, B, C, or D for scattering density for the
        specified cross-sections.  Append S for scattering density for
        the cross-sections specified in PS.  Data are saved in file
        mltmp.prC where C is n, m, t, a, b, c, or d.

 PRF    Plot reflectivity on screen.  Append A, B, C, or D for specific
        cross-sections.  Default uses value from PS.

 MVc    Enter a parameter name and watch as the reflectivity varies with
        that parameter.  Choose c to be one of R, D, I, S, or P.  R plots
        the reflectivities, D plots the ratio of successive frames to the
        first frame, I plots the ratio of successive frames, S plots the
        scattering densities, and P plots the nuclear, magnetic, and
        magnetic angle profile.  S is the default.  Append A, B, C or D
        for specific cross-sections.  Default uses value from PS.

 MVFc   Plots a movie of the last fit progression.  Choose c as in MV.
        Append A, B, C or D for specific cross-sections.  Default uses
        value from PS.

 MVXc   Plots a movie of parameters tabulated in a file.  Choose c as in
        MV.  Append A, B, C or D for specific cross-sections.  Default uses
        value from PS.  The file is formatted with a line that begins
        with # followed by a list of parameters to vary, separated with
        spaces.  The following lines (1 per frame) list the values to use
        for each respective parameter, again seperated with spaces.