QuickShapes are 'intelligent' shapes created using the QuickShape, Rectangle and Ellipse Tools. All QuickShapes can be edited in a very flexible manner. For instance, a circular QuickShape can be converted to a polygon QuickShape with one click using the QuickShape Tool. If you wish to change a QuickShape so it can be edited as a shape built from straight and curved lines, you must use Convert to Editable Shapes.