NOTE!! The WordPress 3.6 menu editor has been retained in newer versions of WordPress (3.7, 3.8). So the instructions here are for WordPress versions 3.6, 3.7 and 3.8.
Log into your WordPress dashboard and click on ‘Appearance’, ‘Menus’
Click on the ‘create a new menu link’
Give the menu a name and then click on ‘Create Menu’
Under ‘Theme Locations’, check Primary Menu. Doing so will assign the menu that you are creating as the primary menu.
In the ‘Pages’ panel click on ‘View All’ and check all the pages that you would like to include in the menu. Then click on ‘Add to Menu’.
The pages that you have selected will appear as tabs in the menus screen –
Drag the tabs up or down to change the order of the menu items. The top most tab will be the first menu item etc.
You can also place a page tab in an indented position to create drop down menu items –
Expand a page tab to give it a new navigation label –
Don’t forget to save the menu!
TO CREATE ADDITIONAL CUSTOM MENUS
Click on the ‘create a new menu link’ again and follow the steps given above.