For developing your projects you have two possibilities: start it from an existing example or create it using the Project Generator wizard. Let's discuss both in detail.
The easiest way to start your own project is to just copy some existing examples (or your own project) into the
apps/myApps folder, or any other subfolder of the
apps folder. Then rename the folder as you want (for example, to
myInteractiveWall), and open the project using your developing environment. Now you can change the code, and run the project.
This way, almost all the examples in the book are made from the
emptyExample project, located in the
Such an approach is indeed very easy. Also, ...