Just to be clear (my vocab was a little jumbled when I wrote that above - sorry!), I need a way of creating some separation for individual items purchased in one order.

I would like to create separation by giving the client the ability to make job notes for each product purchased (rather than a general notes section that is built into Zen). Even better, it would be great if there was a way of allocating a "sub-order number" to each product to create ways of tracking the completion of each product in an order.

Does this make better sense? I welcome any feedback please! Thanks!