Nvidia FleX

I’ve been doing some research in the FleX framework and analyzed the demo quite deeply.
I am looking in to containers now but I can’t seem to find any example in the demo on how to work with it.
Together with this, I am also quite stuck with the eFlexMemoryDevice flag which isn’t used in the demo either and it seems to be able to improve the performance of the data synchronization.
Is there anyone that is experienced with this and that would like to explain these principles?
Thanks in advance.