- 
        Select a technological table.
      
 - 
        From the Engineering Specification
              Edition section of the action bar,
            click Create Subtable
            
 .
        
         The subtable is created from the selected table or from the active table if no
          table has been selected. The subtable is filled with all the values of its main
          table. 
        
    
   
  
  
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