This is my first post to Flyertalk so please excuse me if I'm posting to the wrong board. A simple redirect and I'll post it elsewhere.

The question:
Is there anyway to go between the Star Alliance and OneWorld programs?
I have accumulated 750k miles that are parked with AMEX Platinum, which only allows miles transfers to Star Alliance.
I've used up all the miles with my AAdvantage Platinum Card which only allows booking with OneWorld airlines, and of course I need to travel with a OneWorld airline.

Is there some secret password that will let me transfer miles from AMEX to a OneWorld airline??

Many thanks!