Receiving less than total ordered qty for an Expense PO with Multi Distributions

 Hi,

My Client has a requirement of Receiving less than total ordered qty for an  Expense PO with Multi Distributions in such a way that system takes the quantity and automatically distributes it as per the ratio of the distribution qty on the PO.

Is there a way of doing this using Express or cascade receipts. Express doesn't let you change qty and cascade will fully consume the qty before moving to the next distribution.

We are using R12 Purcahsing.

Thanks in advance

Saurabh