Celtx comes with a sample comic book script. Let's open it up and take a look. To get to the sample material, start Celtx, and click on Samples, as shown in the following screenshot. See, I've included my finger pressing the Samples button to show you how it's done, or you might have better luck left clicking on it with your mouse cursor:

Wait, is that an advertisement above? Yes, just to remind ourselves here, Celtx is connected to the Internet, so the company which develops Celtx adds messages there, usually about availability of add-ons or special offers. This is how they support themselves while keeping Celtx itself free for our use—a small enough favor which I, for one, do not mind granting.

After we left click on the Samples button, the Sample Projects menu appears, as shown in the following screenshot. Scroll down and left click on the last selection, The Mechanical Shakespeare (Comic).

This brings up a Comic Book project container...