next to the Expression field.1. Double-click the caption for the calculated measure item in the view.
OR
1. If the Properties window for
the measure item is open, click the Browse button
next to the Expression field.
2. In the Expression window, make changes by:
Clicking or dragging and dropping objects from the View Items and Functions section to the Expression section.
Or, by manually entering the changes in the Expression section.
3. Use the Validate button as needed to check for any errors in the edited expression.
4. Click OK.