In the Stage view, the camera is displayed as a frame that matches the aspect ratio of your chosen resolution.
You can enhance your animatics by adding camera movements to the scenes. You can restrict camera movements to one panel or spread it out across an entire scene/shot. An example of a camera movement would be if you wanted the camera to go from a wide shot and then zoom in to a close up.
Camera movements are created in much the same way as setting the Static Camera frame, but you will work with keyframes in the Timeline view to set the different camera positions over time. Once again you will use the Camera tool to animate the camera.