The site footer appears at the bottom of every page on your site. It contains four columns, three of which are user-customizable. The fourth column is intended to identify and list contact information for the site owner. Below are the column types and their associated content form elements. You will need to publish the footer for changes to take effect.
To modify the footer content, locate and edit:Base Folder/inc/footer
Empty
An empty column has no content, but still retains its width.
...