Feature request: How to pass a list of item_classes in updateOrderInput() function

[TarJae]

Hi. Thanks for the great package! Is there a way to pass more then one item_class in the updateOrderInput() function. I have started a question on stackoverflow.

[ismirsehregal]

Here a related issue (and a workaround) can be found.

[ismirsehregal]

Realizing this FR would require looping through the item_classes just as it is done for the labels here.

[Yang-Tang]

Thanks @ismirsehregal for the hint. With this b4fcdbf we would be able to pass multiple item_classes to orderInput() and updateOrderInput()