Menu: Diagram→Draw Unobserved
Shortcut: F4
This choice allows you to draw ellipses to represent unobserved variables. To draw an ellipse, press the left mouse button and hold it down while moving the mouse pointer to adjust the size of the ellipse. Release the button when you are satisfied with the appearance of the ellipse.
You can move an ellipse with or change its size and shape with .
After you have drawn one ellipse, you can draw another one just like it by clicking on the path diagram.
See also: