The cross links function allows you to create a set of links and keywords.
For example, you have a page http://example.com/laptops and you wish to promote it by using the keyword "laptop". After you create an autolink connecting this keyword to every occurrence of the word "laptop" on your store CMS pages, the Products or Category descriptions will be added to the link http://example.com/laptops.
This way, you are able to build internal crosslinks automatically.
Go to Marketing > Advanced SEO Suite > Settings > Cross Links.
You will see the following fields: