If you are composing a complex scene with overlays and find that you no longer want to keep one of the objects, it is possible to delete it without affecting any of the other objects in the scene. The ability to delete individual objects is especially useful if you have overlays on and you generate an unwanted object (e.g., if you generate contours of the wrong variable). You can simply delete the unwanted object and continue your scene composition, instead of starting over from the beginning. Note that it is also possible to make objects temporarily invisible, as described in Section 28.5.2.
Object deletion is performed in the Scene Description panel (Figure 28.5.1). To delete an object from the scene, select it in the Names list and then click the Delete Geometry button. The selected name will disappear from the Names list, and the display will be updated immediately.