I am using the form so customers can "build" a cake and get a price estimate from. Right now I have my product the cake frosting type as they determine the pricing of the cake. Cakes often have multiple tiers which may have different attributes and those should be user configurable options.
I want users to be able to enter the number of tiers they want (for example they select five), then be able to set the attributes of each tier individually and get a total price estimate. How can I use quantity (or another field) to do this?