Besides grouping your products according to category, you can also group them according to theme. To do that:

1. Go to Product.
2. Click on Manage Themes.
3. Under Manage Product Themes, click on Create New Theme.
4. Under New Theme Details, enter details for Name, Description and Insert Image for this theme.
5. Click Save.
6. Repeat steps 3 to 5 to create more themes.
7. Next, you will have to sort your products to the right theme. Click on a product item in your left bar.
8. Under View Product Item, click on Edit and click on Product Item.
9. Under Edit Product Item, select the theme for this particular product item in Theme.
10. Repeat steps 7 to 9 to assign more themes to other product item.
11. For the theme to appear on your website left bar, you will need to make some changes to the source code. Go to Design.
12. Click on Template Files.
13. Click edit leftbar.html.
14. Look for <div id = “col2Left”> and type in <themeComponentList/> at the bottom of this section to display the theme tab on your website.
15. Click Save.