To display and edit data according to key dates and time periods, select a key date and preview period.
Choose
(or ).The Define Date and Preview Period dialog box appears.
Enter the key date in the Start Date field.
In the Preview period field, enter the preview period.
When you confirm your entries with Return, the preview period you selected is displayed. Correct your entries as required.
Confirm using .
You have set a date and a preview period. You can change these settings at any time.