I am running Odoo 8, and I want to be able to create different delivery orders for one single Sale Order.

So lets say client buys 10 units of product A, 5 units of product B. 

I have stock of both in my warehouse, but due to different reasons (timing, capacity, perishable items) I want to provide product A today and product B in two weeks, for example. 

I can transfer only product A from the delivery order view, but then i would need a new delivery order to be generated with the rest of the products (B) also related to that sale order.

This is not happening and I havent found a way to deliver one order with multiple delivery notes.