Specifies a standard paper size for the isometric drawing.
You can select from European sizes (A0, A1, A2, A3, A4), ANSI sizes (A, B, C, D, E), or Custom.
Defines:
Option Switch - 14, Pos 1-2
I-Configure - Drawing.Controls.DrawingSize
If you set Size to Custom, then you must also set Custom Height and Custom Width.