If you have not already done so, select Named Times from the Edit menu. The Named Time Editor appears.
Select the Ranges tab.
Click the New button .
Double-click the name field to change the name (from Range#).
Click in the Relative Start Time field and select a relative start time from the list box.
Click in the Relative End Time field and select a relative end time from the list box.
Look at the result in the Evaluation column and verify that it is correct.