I was looking at one of the GP docs regarding icons in the navigation and I saw you need to activate CSS classes in the screen options.
https://docs.generatepress.com/article/adding-icons-to-menu-items/
I do not have this option, does anyone know what I am doing wrong?
I got this from another site:
In WordPress, you can easily style your menuby adding css classes to each elements and make use of it.
Go to admin > appearance > menu
Click on Screen Options (top right of the screen)
Check the CSS classes options in the “Show advanced menu properties” panel
add your css classes to the element