How do I access the list of available add-ons? 9. January 2018 adrian (0) To access the store, if needed tap the button, then tap "Add-Ons". Once the store loads, you will see a list of available add-ons. When you tap the add-on you will be able to see screenshots of how that add-on is represented in the app. When you are ready to purchase, tap the Buy button and follow the In-App purchase instructions to complete the purchase.