The Terms Enum Filter (Aggregator) uses an enum as a base and resolves the enum translation to display in the filter. In comparison to IDs, enums are constant identifiers, usually defined as readable text and not large numbers or character combinations. Enums in Fotoware Alto are collection types or share types. The explanation for enums on Wikipedia: https://en.wikipedia.org/wiki/Enumerated_type. It is used by Fotoware Alto for Collection filters or Share filters, so get the Enum and show a specified translation.