Had a simlar problem
In the binding column used to configure each button you have a window with preset columns starting with ID. You have to add a value for each of those you want to appear in the cart. To use price as an example, you highlight price and then in the value window below enter the price for the item. You don't need to add the $ sign. Do this with each item. Do not change to Quantity configuration however. It needs to remain 0 and updatable. Try this with one button and see what happens. Good luck
