The
            calculator that you use with fields that accept numeric values works
            like a standard calculator, with options to add, subtract, multiply,
            and divide.
         
         To calculate integers:
         
         
            - Click a numeric field accepting integers
               to open the calculator.
            
- Use the integer and operation buttons
               to determine the value that you want to apply to the numeric field.
            
- To add the value in the calculator to
               the current value in the numeric field, click Add.
            
- To subtract the value in the calculator
               from the current value in the numeric field, click Sub.
            
- To close the calculator without applying
               further changes to the value in the numeric field, click anywhere
               outside the calculator.
            
- To enter the current value in the calculator—replacing
               the previous value—click the Result field in the calculator
               or press Enter.
               The calculator closes.
                TipYou can use the keys
                     on the numeric keypad section of your keyboard to operate the calculator.