Is it possible to insert another button next to the top button? And how does the button currently on there know to go down the page to the first section?! I don’t see a name tag for anything (certainly not #primary). So how does it know that’s where I want it to go?
There is no option to add more button in the header but you can request it to codeable for full support.
and for the link to the section, you can read this thread for the answer https://athemes.com/forums/topic/intro-plus-menu/#post-37433