private Function<DocRef, CommandLink> buildOpenDocCommandLink() {
        return (DocRef docRef) -> {
            if (docRef != null) {
                final String name = docRef.getName();
                return new CommandLink(
                        name,
                        "Open " + docRef.getType() + " '" + name + "'.",
                        () ->
                                OpenDocumentEvent.fire(DocRefListPresenter.this, docRef, true));
            } else {
                return null;
            }
        };
    }
Add the columns to the table.
stroom-core-client/src/main/java/stroom/dictionary/client/presenter/DocRefListPresenter.java