I believe Casita
does a pretty good job of orienting new owners to the basic functions of their trailers. It can be a lot to absorb in a hurry if this if your first RV, though. Spending a few nights near the factory as a shakedown is a good idea. I'd also highly recommend getting the A-Z Casita Owner's Guide
, available in print or electronic form. It's way more thorough than the factory manuals.
Enjoy your new Casita!