I have followed your guides for the slider (https://xtemos.com/docs-topic/create-mega-menu/), but my theme doesn’t have a backend editor, which was mentioned at 1 minute 40 seconds. How can I create a mega menu?
1. You are using Elementor page builder while video was used WPBakery, so you can create new HTML Block via Elementor, it has the same widgets and settings like WPBakery.
2. Navigate to Slides > Edit Slide > In the bottom of the slide check the slide settings and change the background image. https://ibb.co/9bpLVTr