To add
a rectangle (or a square) to a graph:
-
Click
the rectangle icon

in the Graph toolbar, or select
Insert
Rectangle from the menu.
-
Place
your cursor at the top left position in the graph where you want your
rectangle to begin.
-
Click
and drag the image to the right to create a rectangle.
If you
press the CTRL key and then click and drag, the rectangle expands
from the center.
If you
press the SHIFT key and then click and drag, you can draw a perfect
square.
If you
press SHIFT + CTRL and then click and drag, you draw a square that
expands from the center.