Column sets
Column sets control what properties are displayed in the list view window. Using column sets and column items, administrators can determine the appearance and order of properties to display. Each type of item can have its own column set to determine which properties appear in the list view window.
Column sets also control which properties are displayed in the tree view. See Tree view display column set (Modified in an update) for more information.
Column items
Column sets are composed of column items. Each column item represents a property or relationship value for an item. You can control the order in which the properties are displayed, the property names that are displayed, column widths, and other display attributes by setting the values on the column items. Use the Manage Column Items dialog box to create and configure column items.