A Library message contains a root element, container elements, and data elements. The types of container and data elements vary according to message type. You can configure both container element and data element properties with the Library editor.
Properties have the following categories:
Properties that have the same value for an element with more than one instance, each occupying a different position in the hierarchy. Any change to a Global Settings property appears in all instances of the element.
Properties whose value can differ for each instance of the element in the hierarchy.
Element properties are named in accordance to industry standards. The Library editor displays different properties for different Libraries.