Hi, \unexpanded\def\font_basics_define_body_font_name_identifier_a#name#identifier#style% {%\writestatus\m!fonts{[#name:#style] => [##identifier:#style]}% - \ifcsname\csname\??fontdefinitions#name:#style\endcsname + \ifcsname\??fontdefinitions#name:#style\endcsname \expandafter\let\csname\??fontdefinitions#name:#style\expandafter\endcsname\csname\??fontdefinitions#identifier:#style\endcsname \else \expandafter\def\csname\??fontdefinitions#name:#style\endcsname{\csname\??fontdefinitions#identifier:#style\endcsname}% \fi} Wolfgang