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                    From the Create
                                        section of the action bar, click Line
				 .
                Select  Point-Point.Select two points.
       
         
           A line is displayed between the two points. 
           Proposed Start  and
           End  points of the new line are shown.  Optional: In the Support box, select a support surface.
                    In this case a geodesic line is created, i.e. going from one point to the
                        other according to the shortest distance along the surface geometry (blue
                        line in the illustration below). If no surface is selected, the line is
                        created between the two points based on the shortest distance.  
                In the Point 1 and Point 2 boxes,
                    select the start and end points of the new line, that is, the line endpoint
                    location in relation to the points initially selected.
                 These points are necessarily beyond the selected
                    points, meaning the line cannot be shorter than the distance between the initial
                    points. 
                Select the Mirrored extent check box to create a line
                    symmetrically in relation to the selected Point 1 and
                        Point 2 points.
                
                    
                Click OK to create 
       the line.
       
         
           The line (identified as Line.xxx) is added to the specification 
           tree.
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