To set constraint options
         
         
            - If you also want to create a pole vector constraint now, select one or more objects, followed by the IK rotate plane handle
               whose pole vector you want to constrain.
            
- Select Constrain > Pole Vector >  . .
-  Set the constraint options.
- See the following:
                  - Click  or  to create a pole vector constraint.
                  
- In the window’s  menu, select  to save the constraint options.
                  
- In the window’s  menu, select  to reset to the default constraint options.
                  
- Click  to close the  window.