I found an interesting article from polygon in which the writer played the game at comic con and played through a series of tutorials that explained the basics of toy box. The link is at the bottom of the page but the most important excerpt is;
"Disney Infinity's Toy Box mode will attempt to explain its complexity and flexibility through a series of tutorials called Masteries. In the Mastery we played, which was guided by a little plastic action figure, instructions consisted largely of placing objects in a 3D space. Other tutorials will teach players Infinity's logic programming and more complex systems."
I remember someone asking about a tutorial, this seems like a good idea.
Source:
http://www.polygon.com/2013/7/24/4551802/disney-infinitys-toy-box-gives-players-freedom-to-create-but-requires