As DITA promotes reuse through keydef and keyref elements. Tridion Docs supports the same and lists down them as references under the map object. However it doesn't list down where the key definitions are used.
It is better to improve the Where used…
DITA reuse concepts depends on keydef and keyref. Currently Tridion docs doesn't resolve keyref (Key reference) in Collective spaces, web repository, client tools (XML editor, Publication Manager).
In Tridion Docs 14 SP2, even keydef and keyref are…