You Can add unlimited number of links.

To Add a link you need to insert Link Title and Link URL then choose where you want the link to appear.

Field Description
Link Title the text that will appear as link
Link URL the link HREF (the site or page where you will be taken when click the link)
Place Where you want the link to appear.
There are two choices : Header Menu and Footer Menu
Link Target How the link opened. In New Page or In the same page.
Add nofollow=nofollow to this Link ? choose if you want google bot to follow this link or not
Publish This Link ? Enable/Disable Link Appearance.

You Can Drag and Drop Links to Re-Order Them.