To create a new External URL Menu Item:
To edit an existing Single Article Menu Item, click its Title in Menu Manager: Menu Items.
This particular menu item is used for creating a link to a website separate from your current Joomla! installation in a menu.
The only significant difference for this menu item is that the link field can be edited. Here is where you will enter the URL you wish to link to. Be sure to include a full URL (http:// www.whatever.com).
See Menu Item Manager: New Menu Item for help on fields common to all Menu Item types, including Details, Link Type Options, Page Display Options, Metadata Options, and Module Assignments for this Menu Item.
Make sure you include the full URL path.
At the top right you will see the toolbar:
The functions are: