The collection tools available for PDM actions include configuration specification and are present in any action page where collecting additional objects for the action is supported. Two modes of collection, termed basic and advanced, are provided to perform the collection. The basic mode is rule-based and can be preset by administrators with default rules to simplify the collection process (though users may be able to override the rules). The advanced mode allows users to see the initially selected and subsequently collected objects in a table view, and to act on objects individually, using menu options provided for the table. For many actions, only the table (advanced) mode of collection is available. Where the basic mode is available, users can toggle between the two modes (with some restrictions, as described in the following sections) by selecting the appropriate tab.