- 
                Choose Window > 
 Advanced Tools. Click the Special 
 Tools Tool 
 and click the measure 
 in question. 
            - Click the Beamed Stem Length Tool 
. Handles appears on each beamed stem in the measure. 
            - Drag the handles to the desired location. 
 For example, stems could be dragged to touch the beam closest to the noteheads, 
 and not go all the way through the secondary beams. Don’t forget that 
 you can select more than one handle at a time.