So, way back in the olden days at RealCove you really didn't have a lot of options when it came to headers or footers.  You could add a photo, and maybe a few lines of text, but that was it.  No weather icon, no links to facebook, no dancing macaroni... nothing.   But then we evolved past that, and made it so you can customize your header and footer to do whatever fool thing you want it to do.  Here is how:

When in the website builder, go to the 'Standalone Pages' tab and then add either a page named 'Header' or 'Footer' depending on what you want to add.  Then go to that page you just created, and start adding apps to that page.  As the site refreshes you'll note that what you've added to that page will also show up in the footer (if that is what you are editing) like so:

Please note that your header and footer will appear on each page of your site, so this is stuff, like a site map, or a masthead that you'll want throughout your site.