Bill of Materials - Add the same item multiple times

Hi All. Being able to add the same item several times on a Bill of Material would be beneficial. For example, we manufacture formulated products that require water addition in several stages to achieve the final concentration. The current BoM system only allows me to add a water once in the listed components. I i try to add this item again, i have an alert popup saying this component already exist. This is an important feature when manufacturing batch tickets are generated directly from Dear. Thanks