Thanks Globaliser. I have a booking that I can view through Amadeus' Checkmytrip. I called SQ and was able to (not sure if only due to my Star Gold status) but they were able to confirm for me an exit row on MEL-SIN, and request it for SIN-JNB. I was so shocked that they confirmed it, that I didn't even ask what seat it was. Hence the curiosity.

goodo