To begin, navigate to the Toolbar > Edit with Elementor > Side Menu (the name of the template may be different)
Or go to Templates > Popups > Side Menu (the name of the template may be different) > Edit with Elementor. Control the layout, conditions, rules and styles of the footer template.
Please check these guides for further information:
Read more about the Elementor Popups
Guide to Vamtam Elementor Builder