Graphic objects (i.e., lines, polylines, polygons, rectangles, curves, closed curves and ellipses) can be added to the graphics pane by using the Drawing Tools toolbar (originally docked to the right of the graphics pane), or by selecting Graphics|Insert from the main menu.
All of the graphic object buttons (or menu options) operate in the same way: when you select a button or a menu option, the cursor changes its appearance (to a drawing cursor). Clicking in the graphics pane with the cursor allows you to insert the object at that point.
You can delete a graphic object by selecting it and pressing the Delete button, or by right-clicking on it and selecting Delete from the context menu.
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