I have found a way to pull up Latam reservations in Sabre. Perhaps someone will find it useful. In the past it was possible to look them up on
https://www.virtuallythere.com. This website now gives the following message instead, "Your trip details are waiting for you in TripCase." However, there is a way to still access it via
http://www.etihad.com/en/
Go to "manage my booking," add the Latam PNR and "choose/print itinerary". In this way you can also pull the corresponding electronic ticket. It also works for AA reservations. This website
http://onemileatatime.boardingarea.c...-seats-online/ instructs how to select seats via Etihad, but this method doesn't seem to be working any more, at least not for my reservations.