Find the Popup, Header and Footer

All the front end layouts are done with Elementor. So you have to familiar with it. 

If you’re new to Elementor. This page may be helpful for you

To edit a popup, go to “Templates (below Elementor) –> Popups”

Click on “Edit with Elementor”

To edit a popup, go to “Templates (below Elementor) –> Theme Builder”

Click on “Header” or “Footer” tab and proceed with the editing.