Arbortext IsoDraw > User's Reference > Palette Window Toolbox > Elements > Polygon > Converting the Element
  
Converting the Element
You can use Element > Convert > into elements to convert polygons into individual lines. These lines are initially grouped together after being converted. You can edit the lines individually once they have been ungrouped by executing Element > Ungroup.
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A polygon is automatically converted into lines or polylines if you delete individual sides.
You can use the Element > Convert > into Bézier parts command to convert a polygon into a Bézier path.
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The single lines or the Bézier path cannot be converted back into the former polygon.