How to Add Multiple Links under Headings to Current Navigation

To add multiple links under a Heading to your current navigation:

Click Site Actions, and then click Manage Content and Structure
Scroll over your site name in the left window pane and from the drop-down menu choose Site Settings
In the Site Settings window select Navigation under the Look and Feel Section
In the Navigation Setting window scroll down to the Navigation Editing and Sorting section to view your Global and Current Navigation.
Select the Current Navigation folder and select the Add Heading button.
Complete the fields in the Navigation Heading window. The title will appear in the navigation. The URL will be the link to an external site or you can link to another page within your site. If linking to an external site (which we don’t recommend in the current navigation) be sure to select the check box for Open Link in New Window. The description will appear when the mouse hovers over the link. It is recommended you leave the audience field blank so all site users can see the link. Select OK when done.

NOTE: You should now see the new heading appear in the current navigation list.

To add links under this heading, select the new heading name and select Add Link button.
Complete the fields in the Add Link window. The title will appear in the navigation. The URL will be the link to an external site or you can link to another page within your site. If linking to an external site (which wedon’t recommend in the current navigation) be sure to select the check box for Open Link in New Window. The description will appear when the mouse hovers over the link. It is recommended you leave the audience field blank so all site users can see the link. Select OK when done.
Repeat these steps to add more links under the Heading.
You should now see the new link appear in the list under the new Heading under Current Navigation. You can sort the Heading or links by using the Move Up or Move Down buttons to position it in the order you desire.

NOTE: If you need to delete this custom link, select the link name and select the Delete button.

Select OK when done adding multiple links under a heading to your current navigation.