Toolbars and Menus

When the user clicks a node, the primary snap-in adds its menu items to the context menu and its snap-in toolbar to the snap-in toolbar frame. Next, extension snap-ins do the same. When the user clicks a menu item, MMC forwards the user's selection to the primary snap-in. As in the context menus, the primary snap-in can add MMC standard verbs so that MMC automatically creates toolbar buttons for those items.