.. _EDGAssetCollectionSingletonSection: EDG Asset Collection Singleton Section """""""""""""""""""""""""""""""""""""" EDG Asset Collection Singletons are special asset collections that are automatically created when EDG is installed. Currently, there are two singletons: Governance Model and EDG Enumerations. Unlike other collection types, only one Governance Model and one EDG Enumerations collection can exist in a given installation of EDG. Assets in these collections are available for referencing in all other collections without a need to explicitly include them. **Setup EDG Enumerations** – Administrators can use this function to populate selection values for built-in EDG properties such as status and confidentiality. Administrators will be able to load files with pre-built values and/or enter custom values. **Further Reading on TopBraid** * :ref:`introduction`