customizing opensource (openatrium) for logistics management

Hello, I want you to customizing opensource ( [login to view URL] ) for logistics management. Basic feature is already in it. Installment is already done at [login to view URL] and I want feature like below. System is for warehouse and logistics management. Warehouse company has sellers for their client and warehouse company need to dispatch orders from buyers of their sellers ( i mean their client). Buyers are from amazon and seller does not need to dispatch the orders and staffs in warehouse will dispatch for sellers. So openatrium must be synced by amazon API then get order list from amazon then create task lists for shipment. And after dispatched, send dispatch report by CSV to amazon sellercentral. For sellers, Its okay if they can see current work flow.