Profile: develalexandr

Hello! We would like to create our website using NOP TEMPLATES. We sell furniture and home accessories. We choose Prisma for our store. But we have a question about it's categories... It looks like in "Kitchen" and other main categories there are just 4 subcategories :  Kitchen Cabinets, Dinning Tables & Chairs, Utensils, Dinning Set. Can we add more subcategories there and how much?