The File menu is similar to the File menu in most Macintosh applications, and the functions are the same as in most other programs.
The Page Setup… selection brings up the standard page setup dialog box. The size of the page available for drawing will change depending on the selection made; for example, choosing a reduction factor on the Laserwriter makes the drawing space get proportionately larger.
Print… prints the diagram shown in the topmost window. Therefore, to print the diagram in a child window, first bring it to the front and then choose Print.