Can I insert my own internal reference Purchase Order number in my bookings? Can Maersk only manage my bookings for Maersk Ocean shipments? How do I use the lock rate on subsequent Maersk Go bookings?  Can I merge several of my bookings into one? Can I extend export freetime? Can I change the departure date of my shipment? Can I change the origin (COO) of part of my cargo? Can I extend demurrage or port storage freetime? Can I change the destination (COD) of my cargo? Can I transfer the Freetime Extension charge to the consignee? Where can I find the Rate of Exchange (RoE)?  Can I negotiate the prices I see on Maersk Go?