[NTG-context] whitespace inside a description

Dear list, I have the following sample: \setupwhitespace[big] \startsetups[small:whitespace] \setupwhitespace[small] \stopsetups \definedescription [description] [setups={small:whitespace}, inbetween={\directsetup[small:whitespace]}] \starttext \input knuth \startdescription{Knuth} \input knuth \stopdescription \stoptext How can I get a different whitespace inside the description? Many thanks for your help, Pablo -- http://www.ousia.tk