Superfish help

Hello,

I’ve enabled Superfish in “Modules” (following these instructions: https://yalesites.yale.edu/book/adding-drop-down-menus), but it is not showing up under Configuration > User Interface. My goal is to add a dropdown menu under the “About Us” tab of the “Main menu” block. Could I get some assistance figuring out this issue and completing the feature?

Thank you!