Hidden folder
A hidden folder is used for pages and portlets that the user can access only through
actions in other portlets.
Hidden folders are visible only in the administration tool, they are not visible to the user. Pages and portlets in a hidden folder are called from other portlets. For example, a page used to edit item details is placed in a hidden folder. It is opened when the user clicks an edit button in an item list portlet. Pages and portlets placed in hidden folders can be reused and called from several portlets. The alias of the page or portlet in the hidden folder is used to call it.