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            It displays three planes (X-Y, Y-Z, Z-X) in the reduction. 
             
             
            
  
    
      |  TOOL | 
      KEY | 
     
    
         | 
       CTRL+I | 
     
    
      | MOUSE | 
     
    
       wheel ↑ 
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        Operation image 
                  *「ZOOM IN]Command→Three figures reduction                              
                  *mouse's wheel is turned for above→Three figures reduction 
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Even if it starts this command, the command which was starting before it is continued. 
 
             
             
             
             
             
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