When creating a menu from scratch, you can navigate to 'Menus' in the orderBilly backoffice and you'll see this screen.
The green button 'add category' allows you to add categories you've previously made.
Here we explain how to create a category. (If there's a direct POS connection, your POS categories can be automatically synchronized with orderBilly)
Select the categories you'd like to add to the menu and press 'add categories'.
Make sure to click on the 'save' button on the right side at the top of the page.
You've now succesfully added a category to your menu.