Zoom Recta

When the Zoom Recta menu item is selected, your mouse cursor takes on the special appearance of a magnifying glass.

You can click and drag the magnifying glass to draw a rectangle on the drawing area of your flowsheet, and the contents of that rectangle are expanded to fill the viewing area of the Drawing Window.

Your cursor remains a magnifying glass (and the menu item remains checked) until you either use the menu to uncheck Zoom Recta, or press the right mouse button.