difference between output on client and LP16

Hello,
i also woud be happy if it could be made possible to use stereo files in MT mode. I often use LP-16 for organ with leslie-effect, or as orchestra background.
These are alwas stereo files and I always have to split them into 2 mono tracks. And the result sometimes sounds a little different from original or even strange.
So please make stereo-files in MT-mode possible.