The program:

OPEN #1: screen 0,.4,.5,1

SET COLOR "blue/yellow"

PRINT "window 1"

BOX LINES 0,1,0,1

BOX CIRCLE .1,.2,.1,.2

FLOOD .15,.15

OPEN #2: screen .6,1,0,.5

SET COLOR "red"

PRINT "window 2"

BOX LINES 0,1,0,1

BOX AREA .1,.2,.1,.2

FLOOD .15,.15

END

The output:

Please run the program to see. You get two windows. Window 1 in the upper left side of the screen has a circle in blue in its lower left corner, and window 2 in the lower right has a red square...all on a yellow background. Boxes are drawn around the two screens.