How to move menu items up and down the menu tree to a new position using right-click.
From the Dashboard Menu:
Click on Site Manager
Click on Menus
Select Your Menu
Click on the the name of the menu you would like to edit.
Make sure the Menu Items tab is selected
You may see a blue link underneath the menu tree labelled Move Item Up or Down. (This is not always visible) Click on this link to view the instructions.
Move the Menu Item
Right-click on the menu item you would like to shift. You will see a drop-down menu appear. Click on either the Move Up or Move Down options to move the menu item. Repeat this step until your menu item is in its new position.