I have a comment from someone in the know in Spektrum whom reckons 8 mixes are available on the DX10T.
Today I tried some stuff with the mixes on the radio, and documented how i did it:
https://docs.google.com/file/d/0B6LW...it?usp=sharing
I do know that whilst I can't see the mixes once I move them they do still work. Just not sure how many active ones I can have.
Cheers,
AP