[OS X TeX] adding the whole bibliography via BibDesk

[konstantinos vasilakos]

But I am running the Bibdesk for this, no ?

The references are appear correctly 

bibliographystyle{plain}
\bibliography{RefHT}

But not when I want to add an extensive bibliography after references.

\renewcommand{\refname}{Bibliography}
\bibliographystylesec{plain}
\nocitesec{*}
\bibliographysec{RefHT}

??
\K.