Adding a second button "Save" instead of checkout

Hi thanks for a great module.

I am wanting to use it for a website that register's company's and corporations. I have the module successfully set-up with a product that gathers information about the company such as shareholder information, structure etc.

Our use case scenario is that we need to add a third button which would be save instead of add to cart for logged in users. How would it be possible to create another button but instead of creating the node, adding it to cart and redirecting to the cart, it would just save the node and re-direct to a view showing the list of the logged in users saved orders.

When they decided to complete the order they could go back and edit the node and hit the add to cart and complete checkout.

Thanks for your help