Hi,
1. By "screenshots of your checkout workflow" Xavier was talking of some screenshots of the page "Hikashop->System->Configuration->Checkout"
2. As Nicolas said, you can add ONE "cart" action per step, so if you have more than one step you can add another "cart" action through the final step.
3. If you only have ONE step, and that you want your cart to be displayed twice, you can set one "cart" action through your step, and create and Hikashop cart module so that your customers will be able to see what they have in their cart even through their last step.