Elements are the atomic items you can put in a scene. Every element has his own visual presentation and a set of properties that can be set to adapt the element to your work.
Elements are also interactive and Events can be added to them to trigger a set of Actions. So for example you can add a “Touch” event to a character to let him move to the other side of the scene.
Elements have a common set of properties that are used to define the position within the Scene and the size of the Elements themselves.