Calculated Series Properties Dialog Box, Visibility
Select Visibility on the Calculated Series Properties dialog box to set visibility options for the calculated series.
When the report is initially run
Select an option to indicate how the report item is initially displayed in the report.
Choose this option to show the report item.
Choose this option to hide the report item.
Show or hide based on an expression
Choose this option to vary the initial visibility using an expression.
Type an expression that evaluates to a Boolean value of True to hide the item or False to show the item. Click the Expression (fx) button to edit the expression.