You can restrict the data displayed in Pivot fact columns using the Hidden Items feature. When you select this feature, the fact column is removed from the report, but not the data layout. You can restore the hidden data item at any time.
To hide a fact column, select one or more fact column names in the Facts data layout pane and choose Hide Items from the shortcut menu.
The fact column name is dimmed in the data layout.
To restore a hidden fact column, select the dimmed column in the Facts data layout pane and choose Show Hidden Items from the shortcut menu.