Portfolio displays menu commands on contextual menus for three separate features: Items (individual records), Gallery windows, and item Previews. A contextual menu is a menu that pops up when you press a key while clicking the mouse (Mac OS, if the Contextual Menus Extension is enabled) or Right-click the mouse (Windows), in the appropriate area of a window.
Item contextual menu: To access the contextual menu for an item, select the item, then Control-click (Mac OS) or right-click (Windows).
Gallery contextual menu: To access the contextual menu for a Gallery, Control-click (Mac OS) or right-click (Windows) anywhere in the unused area of a Gallery window (Mac OS: You can even click in the scroll bars and Toolbar)—but be sure that you do not accidentally select a cataloged item or a button when you click.
Preview contextual menu: To access the contextual menu for an item when the Preview window is active, Control-click (Mac OS) or right-click (Windows) anywhere in the Preview window.