I apologize if I'm posting this question in the wrong place... I am having a heck of a time trying to organize my Facebook store through the Shopify platform. I tried creating "Sets", but there is no way to organize my products into their correct categories and sub-categories. For instance: Metal detectors: Whites Detectors, Garrett Detectors, Minelab Detectors. Metal Detector accessories, Metal detector coils: Whites coils & accessories, Garrett Coils and Accessories, Minelab Coils and Accessories. Etc etc.