Thank you SO much for your decision to purchase a download!
After each item you choose, click ‘Add to Cart’. That will take you to the PayPal checkout page in a new tab. If you want to add more items, just select the new item and click ‘Add to Cart’ again. Each time you’ll see the new items on the PayPal checkout page. You can use a PayPal account, or a credit card if you wish. Thanks!