You can only order full boxes online, if you want partial boxes email details and I can write up a manual invoice.
Scatter Plates are available as an option when you put the 244 in the cart. If they are already in the cart without plates, click to edit that item. When you are back on teh 244 option page, add the Scatter Plate in the options, then add it back to the cart. You can add a Scatter Plate on one or both 244s in n the box.