Logon to ADMIN => MENU => "Manage Menu" => Create New Menu to create new menu shown below :
Content layout area :- Click to specify a layout of an extension will bet set in your content body area of page (which is going to be linked with the upcoming menu). It is an impotent indication to establish bridge between a menu with an articles or extension of a web page. The main purpose is to specify which module, extension , plugin or articles to be plunged into page's body area.
Click on "Select" to open new pops up window that helps indicating the content section. Choose "External URL" and set it. Now according to above image, type new hyperlink at right hand side "Required Setting = > External Link" and save it.
