can select up to 5 categories. Please choose the most appropriate category of products you wish to buy from the list provided by EC21. You can click ‘Add’ and choose categories in 3 steps. You can add up to 5 categories from 900 different product categories can select up to 5 categories. Please choose the most appropriate category of products you wish to buy from the list provided by EC21. You can click ‘Add’ and choose categories in 3 steps. You can add up to 5 categories from 900 different product categorie