We have a package reservation for September. At the time I booked this (on-line) I did not include Disney Magical Express as I had not yet booked our flight. Now it is booked and I would like to add Magical Express. Is there any way to do this on-line or do I need to call Disney? I could not find anywhere on my on-line reservation page (or anywhere else) to do this. Thanks in advance for any help.