You can add a collection of products to your Look & Feel by doing the following:
- Select the Look & Feel you want.
- Click Theme on the sidebar.
- Choose Homepage (a dropdown will appear).
- Scroll until you see the Titles, Product Buckets and Product Grid. It is there that you can import the Collection you created to a specific area on the homepage.
Know how to create a collection? If not, click here to learn more about creating a custom collection.