Categories / Subgroups
Categories let you organize swatches inside a single product group. For example, under a Color option, you can separate swatches into subgroups such as Warm Colors and Cool Colors. Categories are managed through the same Shopify metaobject editor used for custom images and become available after the group is saved. Each product in the group can be assigned to a specific category. When the Show category headers option is enabled in visual settings, swatches are displayed under their respectFeaturedProduct Groups
A product group is the core structure of Rubik Combined Listings. It allows you to combine multiple separate Shopify products and display them as swatches on the storefront, effectively turning them into visual variants of a single product. When creating a product group, you will define two main fields: Internal name – Used only inside the app for management purposes. Option name – The label shown on the storefront, such as Color, Size, Material, or any custom attribute. 