When viewing a product on the product detail page, click “Add to List,” (next to the Add to Cart button on the top right), and add the product to one or multiple existing lists in the drop-down. You can also create a new list here and add it to your newly created list
You can manage “My Lists” under the “Lists” tab on your dashboard. In the list overview page, you can create, view and delete lists. If your account is part of an organization, you can also share each of your lists with your colleagues and see lists that they have been shared. Don’t worry - shared lists cannot be edited by colleagues. Lists are only editable by the creator.
Within each list, you have the ability to add all the products in the list to your cart, or just individual products of your choosing. Before adding products to the cart, you can also easily change their quantity. You may also delete any products from the list which are no longer required. Here you can also rename, share or delete the list.
See this video for a detailed walkthrough