This is live! In an Auto Add to Cart offer, set the "Add to cart" step to "Let the shopper choose 1" and shoppers get a pop-up to pick their free gift, including the size or color. It's part of the Storefront Widgets add-on, which you can turn on from the Billing page in the app. Setup steps: https://regiostech.crisp.help/en/article/free-gift-picker-pop-up-miwotf/