1. Go to Menu Manger: select a menu you want to add a sub menu item.
  2. From Menu Items, select the “New” button to create a new menu item.
  3. Menu item Type: Select-under Articles: we will use a Single Article Menu Item Type.
  4. Menu Title: Enter a Title for Sub Menu.
  5. Menu Location: Where it should appear.
  6. Parent Item: Select the parent item under which the new Menu Item will appear. This will make it a drop down Menu under that Parent Item.
  7. Save: Save you work.