An “annotation” is a hotspot we apply to a feature on a 3D model. For example, an annotation might identify a mythological figure on an ancient bas-relief. When you click on an annotation, a small window opens in which you can learn something interesting about the feature.
When there are two or more annotations on a 3D model, you have the option to move around it from one to the next. To do this, find the “forwards” and “backwards” buttons on the bottom of the screen of a model. Click once on the “forwards” button to proceed to the next annotation we have placed on the 3D model. If you want to retrace your steps, you can easily do so by clicking on the “backwards” arrow until you find the annotation you were looking for.