I would like to add an additinal step to Magento checkout page in order to show a maximum of 10 related products.
The module needs to also have a button that customers can click if they already have the items in their shopping cart and want to proceed to the next step.
I've attached a diagram for reference
Additional Project Description:
04/14/2013 at 22:04 BST
There needs to be an additional step added to OnepageCheckout which come after Shipping Information is added by the customer.
The module should be able to show upto 9 products with small thumbnail images that expand into a lightbox with additional information and an addtocart button.
The products should be shown in rows of 3 with one product beneath that is pulled from the Crossell category.
See diagram please