I miss a block where you can add your own custom build navbar. I saw the colors you can edit in the template section. And will there be videos about the builder, I'm sure there are many things I haven't found out yet.
Gutshot Hi The Mega menu is coming form the template settings of T4 template. For example if you are using a T4 framework template the Mega menu setting can be changed via T4 > navigation settings tab : https://www.joomlart.com/documentation/t4-framework/navigation-settings Here is documentation for T4 Page builder : https://www.joomlart.com/documentation/t4-page-builder