You can easily edit any of the order details in Mintsoft provided that:
1) You have the edit orders role assigned to your user account (please contact your admin user to add it if you do not)
2) The order is still in a valid status to edit (i.e. not picked or despatched)
To edit an order - Navigate to Orders > Overview then browse or search for your order and use the Actions > Details option (you may need to scroll horizontally to the right if you are on a smaller screen to see this button):
Once you are in the details section you can change the address, courier & other information.
If you want to change products - go to the items tab:
Once you have finished making changes to go the Details tab and scroll down to the bottom to save: