If you would compare the last recipe involving moving cameras with the Align to Spline tag to moving an actual physical camera with your hands or on a Steadicam, then this recipe shows you how to place your camera firmly on a tripod and walk away from it.
Once we get a camera positioned where we want, we don't want to have to worry about bumping the scroll wheel on your mouse or accidentally switching camera views and losing your nice scene composition. This can happen by accident and frustrate you in the midst of a deadline, and it can be easily prevented.
Start by adding a Cube primitive to your scene from the Command Palette. Then, click once on the Camera icon in the Command Palette to add a camera to your scene. Switch to it in the Viewer under the Cameras menu and the Use Camera submenu, making sure that we are no longer on Default Camera.
Let's say this is the perfect angle and you don't want to lose this shot. Highlight the camera...