Footer

The Footer section is created in the Sub-Layouts, so you can go to Site template styles > edit a style > Layout > Sub-layouts. Here you can click on the Footer Section > then edit the footer content.

Sub-layouts

Edit the footer content.

Basically, Sub-layout has the same role as Joomla's Module. It was created to help admins reuse a layout section in many different Template Styles without having to repeat the work of creating the same layouts.

Beside the footer, you can create different sub-layouts and add them to the main layouts.