How to get slot content from navtree

We have header and footer links on every single page.

I created 2 snippets with header and footer links and added them into to both top_nav_link slot and bottom_nav_link slot on the Navtree. I have no problem retrieving those information on home page but not on the secondary pages which has navon content item. Is there anyway to get those links information and displayed on the secondary page?