Architecture Interactive allows a user to add any 3d model to a scene as a “prop”. These can be anything from a simple object such as a flower vase to complex medical equipment and beyond. Items already present in the scene may also be manipulated but props are a good way to add/change elements that don’t already exist. **Note that the prop library is associated with a particular world. This way when you change scenes you have a prop library specific to that design review.