Subreport Properties (Visibility Tab)
Use the Visibility tab of the Subreport Properties dialog box to define visibility options for the subreport.
Select an option to indicate how the subreport is initially displayed on the report.
Choose this option to show the subreport.
Choose this option to hide the subreport.
Choose this option to vary the initial visibility using an expression.
Type an expression that evaluates to a Boolean: True to hide the item and False to show the item. Click the expression (fx) button to edit the expression.
Visibility can be toggled by another report item
Choose this option to indicate that another report item can change the visibility of the subreport.
Type or select the name of the report item that the user can click to change the visibility of the current subreport. The report item must be a text box in the same grouping or containing grouping as the current subreport.