> Mikael P. Sundqvist <mailto:mickep@gmail.com>
> 4. November 2016 um 16:33
> Thank you very much Wolfgang!
>
> Now I can get exactly what I need, see the example below (also tested
> with my larger document, available at
> http://www.maths.lth.se/matematiklth/personal/mickep/analysB2ht16/analys-context.pdf).
>
> I'm very happy about this solution. Also, thanks to Hans for giving us
> this very nice tool (I usually only write to the list when I have
> problems, sorry)!
With the new beta you can set a default prefix for enumeration references,
i.e. you can write \startquestion[knuth] in your document without the need
to add a question or answer prefix.

\setupinteraction[state=start]

\define[1]\QuestionTextCommand
   {\doifreferencefoundelse{answer:\currentconstructionreference}
      {\goto{#1}[answer:\currentconstructionreference]}
      {#1}}

\define[1]\AnswerTextCommand
   {\doifreferencefoundelse{question:\currentconstructionreference}
      {\goto{#1}[question:\currentconstructionreference]}
      {#1}}

\defineenumeration
   [question]
   [text=Question,
    headcommand=\QuestionTextCommand,
    referenceprefix=question]

\defineenumeration
   [answer]
   [text=Answer,
    headcommand=\AnswerTextCommand,
    referenceprefix=answer]

\starttext

\startquestion[knuth]
\input knuth
\stopquestion

\page

\startanswer[knuth]
\input knuth
\stopanswer

\stoptext

Wolfgang