Flex Menu is a jQuery script that lets you create responsive menu bar that automatically collapse into a “More” drop-down when they run out of space. When there’s only space to display one or two items, all the items collapse into a “More” drop-down.
Make sure that you already installed and activated the following tools on your site:
- GeneratePress Theme
- GeneratePress Child Theme
- GeneratePress Premium Add-on
Now follow the instruction at below: