15.64.2  Options 

     1.  ARROW - Sets default arrow format
     2.  AXES - Sets default axis
     3.  BAR - Sets size of ends of error bars and a break in error bars
     4.  BOX - Sets default box size
     5.  BLINK - Sets the BLINK attribute.
     6.  CARD - Maximum length of input lines
     7.  CHARACTER - The character set used
     8.  CIRCLE - Same as SET ELLIPSE
     9.  CLEAR - Selects deferred or immediate screen clearing
    10.  COLOR - Sets default color or pen number
    11.  Ctrl_Z - Enables or disables the Ctrl_Z key.
    12.  CYCLE - The color,width, texture to cycle through.
    13.  DATE - Set base date for date\time.
    14.  DEVICE - Chooses I/O device
    15.  DIAMOND - Sets default diamond size
    16.  DIGITS - Sets number of digits for show command.
    17.  ELLIPSE - Sets default ellipse size
    18.  ERRORS - Changes the output of errors
    19.  FILE - Selects files for input, output, and journaling.
    20.  FILL - Selects the fill style.
    21.  FLUSH - Sets automatic flush mode.
    22.  FONT - Chooses UGSYS character set
    23.  FORMAT - Format for input lines (256A1)
    24.  GRID - Specifies grid marks overlay plot
    25.  INTENSITY - Sets default intensity (line width)
    26.  LABELS - Sets defaults for numeric labels on axes
    27.  LIMITS - Sets X,Y,Z limits for plot (range of data to plot)
    28.  MODE - Set misc.  functions
    29.  MONITOR - Set type of monitor plots
    30.  ORDER - Determines interpretation of input data
    31.  OUTLINE - Controls outline around plot
    32.  PATTERN - Sets the pattern for PATTERNED lines
    33.  PAUSE - Controls pause at end of plot
    34.  PEN - Selects the default pen or color to use in plotting.
    35.  POLAR - Selects polar coordinates.
    36.  PROMPT - Sets the prompt string.
    37.  REVISION - Sets the revision level (what features TD has)
    38.  SECONDARY - Controls the attributes of secondary contour lines.
    39.  SEGMENTS - Controls breaking the plot into segments
    40.  SHADOW - Sets 3-d plots to shadow plot to make the point location
         more obvious.
    41.  SHIELD - Sets an area to be shielded so that no more plotting is
         done there.
    42.  SCALE - Controls scale (log/linear...), and the number of default
         labels and ticks.
    43.  SIZE - Defines size of screen or paper
    44.  STATISTICS - Sets the range of data to use in subsequent
         lexicals.
    45.  STORAGE - Defines what is kept in storage
    46.  SYMBOL - Sets default symbol to plot
    47.  TEXTURE - Sets default line style (DOTTED,SOLID...)
    48.  THREE - Sets parameters for 3-dimensional plots
    49.  TICKS - Controls tick marks on axes
    50.  TITLE - Sets size of title
    51.  UNITS - Sets the units of the TEXT coordinates, and character
         sizes.
    52.  WIDTH - Sets the line width or intensity 
    53.  WINDOW - Defines the plotting area (labels may be outside area)