This feature is enabled when you select a simple object. You can change the shape of simple graphic objects such as line, rectangle, arc, circular sector, chord, polyline, and polygon. When you select an object, 
icon is enabled, and you can change the shape of object by dragging its handles.
a) Select a simple graphic object to reshape. Click the [Reshape] icon (). Each handle on the object’s line is turned to black.
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b) You can change the shape of object by dragging its handles. The top-right handle was dragged in this example.
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