Thanks for help
Thanks to you both. That was just what I needed and I was able to make it work. Oddly, the upgradeable fares BOS-AMS-BOS were around 790 but the AMS-BOS-AMS were in the 2200 range. For some reason it is more expensive to start in Europe. I was thinking about getting two and droping the returns but it was too expensive money and miles wise. Maybe I can make it work next time as it is a great tool
Thanks again
Joe