> ## Documentation Index > Fetch the complete documentation index at: https://docs.digifist.com/llms.txt > Use this file to discover all available pages before exploring further. # Product groups > Link separate products so they behave like variants using swatches, images, or text options. Product groups in Olympos are configured through the Theme Customizer and your store data. Once you understand how they work, you can apply them consistently across your store without editing theme code. This page is being prepared. Detailed settings, visuals, and best practices will be added soon.