If a takeoff shape repeats itself over and over again, you can use the Copy feature to turn the shape into a stamp and replicate the shape as many times as needed.  Once you have completed your measurement, you can use the Select feature to select the shape.  Once the shape is selected, click on the COPY icon in the Stratosphere toolbar.  This will turn the shape into a stamp.  Click this mouse where you would like the duplicate shape placed.  To get out of the Copy function, click on any of the other icons or on one of the layer descriptions.