You extend an existing vSphere object’s list view if you want to include additional information about each object in the list. The following are some examples of new information you might add to an object list view.
■ You have added a new object type to the vSphere environment that is related to the target object, and you want the related object to appear in the target object list view. For example, if you add a new object type called Backup to the vSphere environment, you can extend the Virtual Machine object list to show Backup objects related to a given Virtual Machine.
■ You have extended the vSphere Web Client Data Service to provide additional properties for the target object type, and you want those properties to appear in the object list view. For example, if you add additional properties to a Virtual Machine object, you can extend the Virtual Machine list view to display those properties.
■ You want the object list view to display any other property or information that does not appear as a column in the default list.