Hello,
Here you can find some video tutorials – https://www.youtube.com/c/8theme/videos
About the menu, go to Theme Options > Header builder > Main menu > select menu
If you need to get elements/pages from different demos there are 2 ways:
– XStore studio allows import sections from different demos, when you are using Elementor plugin. Just edit page using Elementor > click here – https://prnt.sc/udpfle and import the desired block.
– If you are using WPBakery Page Builder – https://youtu.be/wkIKN2IyEZI
If you can’t get the desired page using the Studio, provide the URL of the demo page and temporary wp-admin access, we will help you.
Regards