When you first select the Stock Control Module for a new company, and after filling in the System Parameter section, you'll be promoted to set the Period End Date for your fiscal months
You'll be required to enter the Period End Date for the first fiscal month, as set in the System Parameters
After entering the first Period End Date, press Tab to allow Win Accounting to automatically populate the rest of the periods
Press Alt+C to clear the first Period End Date - adding a new date will cause the rest of the period dates to automatically update
When the main Stock Module is running, quickly and easily view the Periods Table by pressing the F9 key