Hi,

re: http://source.contextgarden.net/symb-uni.tex

What does, for example,

"0x2000: Requires UnicodeRegular20" mean in
\startsymbolset[Unicode Additional Punctuation] % 0x2000: Requires
UnicodeRegular20

in the context of

\usesymbols[uni]
\def\mySymbol{\symbol[Unicode Additional Punctuation][*symbolname*]}

Thanks,
Alan