A mouse click can change the origin of rotation quickly, a feature I find extremely useful. Light sources can also be easily placed and modified. One handy feature is that any object can be a light source or a camera. It is often convenient for the camera to also be a light source and this is very easy to do. Scenes can be animated by creating individual frames or by moving objects in a variety of ways.
Objects can rotate, revolve around others, or move along curves.
Additionally, object motions can be linked hierarchically, making it possible to have one object move around a second one and have that second one follow it as it moves around a third one. With the demo, you can try out all of the program's features, but you can not save anything you create. For many users though, these limitations may be very minor. The full version is a bit more expensive, and has none of the limitations of the SE version. It's obvious that the programmers spent some time addressing the issue of efficiency by combining the generally faster Z-buffer algorithm with the raytracing approach.