You must know Prestashop and PHP for this simple project. In the Backoffice, when a new product is being created by an employee, I need one of the categories on the admin category tree to be either hidden from view or not selectable by employees. Employees can add products and select all other categories on AdminProducts.php. I've looked at the file around line 2823, but I'm not sure what to do here.
I don't want employees to be able to add products accidentally in this one category.