The Edit menu contains commands for editing the current model. These commands tend to be used frequently, so this menu is a tear-off menu. If you click on the perforations at the top of the menu, the menu will be torn away from the menu bar and will become a free-floating window so that its commands are immediately available at all times.
The Edit menu is also available as a pop-up menu within the editing area.
The following commands are available from the edit menu.