I know about How to add link in footer. But I cant find how to add navigation.
Here is your answer to add link in footer:
Navigate to Modules -> Modules and search for “CMS Block” module.
Click on Configure button
In Configuration of the various links in the footer section, click to enable your newly added page
Save your settings by clicking on the save button.
We have added link to CMS page to the footer menu.
Thanks
vidmate