To begin, navigate to the Toolbar > Edit with Elementor > Login Popup (the name of the template may be different)
This popup screen opens up when you click on the user icon:
Or go to Templates > Popups > Login Popup (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