So BODO stands for "buy one donate one." It is for a charity effort. We will be donating one safety item to a homeless shelter for every item purchased from our Shopify store, it's a great cause.
We need: For each item purchased, an equivalent item is added to the cart for free.
At Checkout: The customer gets to choose from some pre-defined charities (dropdown etc.)
Shipping: Auto populate the ship-to address for the free item (the address of the charity picked).