Enter command and click Draw button.
Usage:
Rectangle:
R <X Coordinate> <Y Coordinate> <Width> <Height>
Circle:
C <CX Coordinate> <CY Coordinate> <Width>
Polygon:
P <X1,Y1> <X2,Y2> <X3,Y3> ..... <Xn,Yn>
Line:
L <X1 Coordinate> <Y1 Coordinate> <X2 Coordinate> <Y2 Coordinate>