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 Side Menu popup template. 






Please check these guides for further information:

Read more about the Elementor Popups

Guide to Vamtam Elementor Builder