Why Doesn’t a Level for a View Show in the Filters Window?

The Filters window only displays levels in a view that have their Visible property set to Yes. A level will not display in the window if it is defined as hidden (Visible = No). In the following example, three of the levels in the view are hidden including the Region level. The Filters window will display the five levels that are defined as visible, listing the levels that are on columns first followed by the levels on rows.