| Draw options
| 
| Draw options are set via a system variable.
|
| Option  Meaning                                               Values
|   P     Paper size and format                                 An[L][S]
|           n = paper size (usually 4 for A4)
|           L = landscape (otherwise portrait)
|           S = show paper limits
|   G     Configure grid                                        nxm[I][A][S]
|                                                               [L][C]
|           n = grid spacing in units
|           m = number of subdivisions
|           I = isometric (otherwise rectangular)
|           A = auto-adjust enabled (otherwise disabled)
|           S = show grid (otherwise don't)
|           L = grid lock enabled (otherwise disabled)
|           C = units are in cm (otherwise in inches)
|   T     Automatically open tools                              [+-]
|           + = open when loaded
|           - = don't open
|   Z     Zoom factor                                           a:b
|           a = multiplier
|           b = divisor
|   M     Tool/mode select                                      tool
|           L = Line
|           l = Closed line
|           C = Curve
|           c = Closed curve
|           R = Rectangle
|           E = Ellipse
|           T = Text
|           S = Select tool
|   U     Undo buffer size                                      k
|           k = Size of buffer in bytes
|   J     JPEG dithering                                        type
|           N = no dithering
|           D = simple dithering
|           E = error diffused dithering
|
| For example (the default):
|     Set Draw$Options P4 G1x4A Z1:1 T+ Ml JD
|
| Uncomment and change the next line to enable choices
|Set Draw$Options P4 G1x4A Z1:1 T+ Ml
