Hello,
1/ We can see electron01 demo on your site. Enable WPBakery for static blocks https://xstore.helpscoutdocs.com/article/101-wpbakery-page-builder to be able to edit Footer content. Let us know if you need any further assistance. 2/ Theme options > Header builder > edit header content depending on your needs. Here you can find some videos – https://www.youtube.com/c/8theme/videos
Regards
