Use the Polygon tool to draw polygons and polylines. Polygons can be moved, resized, reshaped, brought to the front and so on, and their properties edited just like other types of object.
To draw a polygon:
To draw horizontally or vertically only, hold the Ctrl key down when you are drawing the polygon.
When you complete the polygon, the object properties dialog is displayed.
To draw a polyline:
To draw horizontally or vertically only, hold the Ctrl key down when you are drawing the polyline.
When you release the mouse button, the object properties dialog for the circle is displayed.
Initially, the object will actually be a polygon. To change it to a polyline, in the object's properties dialog define it as [Object type] Open.