First, you can choose between two methods:
          
          
          
  
            - 
              Double-click 
  Maturity Mode in the specification tree. 
            - 
              Right click the Family root node at the very top of the specification tree and then click Maturity Mode in the contextual menu that appeared.
            
  
  
           
        
       
      
        
          In both cases, a dialog box called Maturity Change appears and allows to choose between either the Automatic or the Manual mode.
        
   
          
          Select one of the two proposed modes and click OK. 
       
      
       
     
  
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