Unfortunately no, you cannot have two people logged in on an account simultaneously (even with cross save enabled). If you sign-in while one of our staff are conducting your order it will inevitably sign them off the account and they will not resume until you are notified again to figure out the best time to resume the process. Some orders make take multiple days to complete and will require multiple sessions and we are always flexible to work around your schedule. Orders can always be paused and resumed later during your downtime so that you can still complete other personal objectives.