Object Filters return a list of objects for given set of filter criteria. Filters appear in the tree on the main Surveyor/400 window either under a library or under the Database folder. Filters also appear in the Library Properties screen. Filters can be viewed, added, edited, deleted, copied or opened in the Object Search screen through the Object Filter Manager which can be opened by clicking on the icon on the tool bar. For convenience, filters may also be viewed, added, edited, deleted, copied or opened in the Object Search screen by right-clicking on a filter in the main Surveyor/400 tree view. Filters may also be edited or added by opening the Object Search screen.