For example: Buy a Student VIP ticket and receive a free single-scoop ice cream in your choice of flavour.
When creating this example deal, the Item single-scoop ice cream is added. This item is configured with a Modification Group for ice cream flavours, which contains Alternate Items strawberry, chocolate, and vanilla.
When the Kiosk user selects this deal, Kiosk prompts them to choose either strawberry, chocolate, or vanilla ice cream. A Change button next to their selected modifier allows them to change their mind. This is particularly useful for items with multiple modifiers.