You have following 3 footer sections:
- Footer 1
- Footer 2
- Footer 3
This 3 footer sections can be activated in the admin panel -> Theme Options -> Footer. After activating them you see the activated footers as widget areas in the widget panel (admin panel -> Appearance -> Widgets).
To add content to the footer, just select the widgets you want to have and add them to the footer (for example footer 1).
Each widget in the footer will add another column. So if you’re using 2 widget, the footer will have two columns, one column for each widget.
You can also use the static blocks in the footer area, just add the static block widget to the footer, select your wished static block and style your footer area with the visual composer (edit the selected static block).
The typography, dimensions and background of the footers can be changed in the Theme Options under Appearance.