To begin, navigate to the Toolbar > Edit with Elementor > Search Popup:




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





You can find more information regarding the Search Widget here: https://elementor.com/help/search-widget/

   

  




Please check these guides for further information:

Read more about the Elementor Popups

Guide to Vamtam Elementor Builder




How to trigger the popup from the header search icon?



To begin, navigate to the Toolbar > Edit with Elementor > Header - Home Modern:



  

Click on the "Edit" icon of the button. 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/