Hey Jerry,
Don't worry too much about figuring out the DX3R, i was a bit hesitent going into it with all the menu's and settings etc. But they're all layed out really cleanly, its easy to use the scrolling, knob thing, and it has really sensitive adjustability, so you'll be able to get whatever setting you want out of it with relative ease.
Good luck with the final steps of your projects!! (these usually turn out to be the hardest, but the most rewarding at the same time
)