New property type request, multiple checkbox with included quantity

I’d like a new property which would be a multiple checkbox type but with an added field for quantity.

The use for this would be tickets that have several different products attached to them, in some cases several of the same type.

Example:
Product 1, Quantity: 8

Product 2, Quantity 3

This would of course be not only useful for sales and customer service but especially when making a report to see how many products are affected by X category.