Menu is a totally new concept in osCommerce v4 that comes built in and "out of the box".
Instead of website menu being effectively a copy of the category tree in previous versions of osCommerce, in version 4 we have created a totally separate entity for menus, which can be embedded into any part of any page.
And so, Menus are managed from a special section of the back end:
You can switch between different menus existing in the system or create a new one.
It is possible to export and import menus, to move them between websites.
A menu is a list of a tree of choices. Each menu item can have its own name, link (if not predefined link to one of the website's pages), and style class:
So, it is possible to rename categories as they get added to the menu, or even have the same category more than once in the menu.
Besides categories and brands, It is also possible to add links to website's pages (like Shopping cart, Contact, etc), to the content pages (like About, Privacy policy, etc), or to a completely random URL (custom link).