1. Choose Tools > Administration > Project Options.
The Project Options dialog box opens.
2. Select the Test Cases category.
3. Select any Defer Test Case Numbering options.
Select a check box to automatically assign test case numbers for the corresponding option. If you do not automatically assign numbers, you can manually assign numbers at a later time.
4. Enter the Next test case number.
The value must be greater than the largest existing test case number.
5. Click OK to save the project options.