Multiple projects in a single project container

When we start Celtx, the Splash screen presents us with the option of creating seven specialized projects, as shown in the following screenshot:

We came across these in Chapter 1, Obtaining and Installing Celtx, and, for review, they are: Film, Audio-Visual, Theatre (that good ole Canadian/English spelling, eh?), Audio Play, Storyboard, Comic Book, and Text. Also, we can customize and define other types of projects as detailed in Chapter 2, All those Wonderful Writing Features. We define and discuss these projects throughout this book and even have separate chapters on most of them.

Also already seen, the difference between projects is the type of script included when the project is created. A Film project's screenplay has different script elements than a Comic Book's script because one describes live action and the other details drawing images on paper. The following screenshots are an example of this difference. The elements of Screenplay are...