I'm not sure I've ever seen transfers on the app. But, perhaps I haven't looked. You'll be contacted by
DCL while at OKW as to when to meet the representative in the lobby to transfer to the port. Post-cruise, they will scan your key card or magicband+, I believe, to get on the bus back to the Airport. However, on the Website, if you go to My Reservations, scroll down to your Stateroom number, you will see "View Price Summary". Ground transportation will be listed there. I hope this is at least somewhat helpful.