Originally Posted by
Fabo.sk
If your wife has medical issues with long walks, book WHCR service with the airline. They will pick you up with a wheelchair at the aircraft door and move you where/as needed. In your case a lounge in departing terminal I would suggest. You can then let them know that you can get to the gate on your own... or arrange time to pick up.
Thanks for the tip. Even if I could get her to the bus gate at Z11 it would help, although with a long connection there appear to be lots of places to rest along the Z concourse.