Hello,
1/ Header builder > Main menu > Mega Menu Dropdown Full-Width > On 2/ If you have a lot of menu items and can’t save some menu options then you need to increase PHP Max Input Vars. Try to set 5000 or 8000. You can enable Elementor for static blocks – https://xstore.helpscoutdocs.com/article/47-static-blocks , then create static block with the desired content and select it for the menu, for example – https://gyazo.com/d6afe9b050704590ea0e7e4d725c38f6 https://gyazo.com/15ee9eb308369e3934afdd1799a0c3ce https://gyazo.com/70e9c8020844001a774b233f3787e195
Regards
