When properties are copied from one annotation to another, all of the properties are applied so that the destination annotation matches the source annotation. This applies only to user-defined annotations. While a pre-defined annotation can be edited, it is not possible to copy properties between it and the user-defined annotations.
The drag-and-drop technique in particular can be used to copy properties of annotations in two ways. The typical way is to drag the source node onto the destination node, which requires navigating the tree. But an additional technique for annotations is to drag the annotation node into the visualization display of the destination scene.