Updated in Wiki: at GRU as a passenger transferring to LX in F (SEN and mileage upgrade) I was met at the gate of my incoming domestic LATAM flight (same ticket)

Staff member escorted through priority transfer security and passport control to lounge and picked me up again for boarding. Great service for an out station.

Also had boarding passes for flight and connecting flight from ZRH printed and waiting for me (LATAM had not printed those)