To begin, navigate to the Toolbar > Edit with Elementor > Menu H. Architecture





Or go to Templates > Popups > Login > Edit with Elementor. Control the layout, conditions, rules and styles of the popup 

Read more about the Elementor Popups





Read more about the Elementor Builder




How to trigger the popup from the header push menu



To begin, navigate to the Toolbar > Edit with Elementor > Header - H. Architecture




Click on the "Edit" icon of the push menu Icon Box element. You can edit or remove the popup connection in the Link field:



Please follow the detailed tutorial for how to "Create a Button to Trigger an Onclick Popup in Elementor" here: 

https://www.youtube.com/watch?v=-29XXbJLnQM

https://elementor.com/help/how-to-trigger-a-popup-on-a-link-click/