Whilst the undocumented POP Attachments appeared in the winter edition of 200c, the corresponding SOP attachments would also be a worthwhile addition - when you add it though could you document it & include it in the training material this time though?
The POP attachments are document in our helpfiles - https://desktophelp.sage.co.uk/sage200/professional/Content/POP/POPOrderAttachments.htm?cshid=Sage_MMS_POP_EnterNewOrderForm_attachmentsTabPage