\def\dodefinestylecollection[#1]% {\iffirstargument \setuvalue{#1}{\styleinstance[#1]}% \def\docommand##1% - {\def\dodocommand####1{\letbeundefined{\??sx##1:####1:\commalistelement}}% + {\def\dodocommand####1{\letbeundefined{\??sx#1:##1:####1}}% \processcommacommand[\fontalternativelist,\s!default]\dodocommand}% \processcommacommand[\fontstylelist,\s!default]\docommand \fi} Wolfgang