Infoplus Support

I would like the ability to partially ship in a way that allows the back-ordered products to be on one order and not split into multiple orders if there are more than one SKU that is back-ordered.
Example:  Order has SKU 1, SKU 2, and SKU 3, but SKU 2 & SKU 3 are back-ordered, we would like you to ship the order of SKU 1, we want the remaining SKU 2 and SKU 3 to be consolidated in a new order and not split into two remaining orders.