Static pages or “Posts” can be created from the admin panel. Just go to Posts > New post to create a content page. To edit an existing static page, go to Created posts > Posts.
You can then link different Footer menus or Custom content pages to different posts.
How can I create a footer menu and link it to a static page or an external link?
You can create a footer menu from Existing Menu Options > New Menu or edit existing ones from Menu Options list.
To link a footer menu to link any URL, keep the From system page turned off and add the URL in the respective field.
On the other hand, to link a menu item to a static page from the site, turn on the From system page and select the created post from the Page drop-down.