> Mikael P. Sundqvist <mailto:mickep@gmail.com>
> 3. November 2016 um 16:14
> Dear Otared (and others),
>
> while waiting for Hans reply on the \namedenumerationparameter and
> \enumerationparameter, this is the best I could do. Now, only
> "Question" is clickable and not the number, but I think I could live
> with that if no other solution show up.
The reference value is set in a group and can only be accessed within 
this group
but you can use \currentconstructionreference to access it.

\setupinteraction[state=start]

\define[1]\QuestionTextCommand
   
{\doifreferencefoundelse{answer:\cldcontext{lpeg.match(lpeg.secondofsplit(":"),"\currentconstructionreference")}}
      
{\goto{#1}[answer:\cldcontext{lpeg.match(lpeg.secondofsplit(":"),"\currentconstructionreference")}]}
      {#1}}

\define[1]\AnswerTextCommand
   
{\doifreferencefoundelse{question:\cldcontext{lpeg.match(lpeg.secondofsplit(":"),"\currentconstructionreference")}}
      
{\goto{#1}[question:\cldcontext{lpeg.match(lpeg.secondofsplit(":"),"\currentconstructionreference")}]}
      {#1}}

\defineenumeration [question] 
[text=Question,headcommand=\QuestionTextCommand]
\defineenumeration [answer]   [text=Answer,headcommand=\AnswerTextCommand]

\starttext

\startquestion[question:knuth]
\input knuth
\stopquestion

\page

\startanswer[answer:knuth]
\input knuth
\stopanswer

\stoptext

Wolfgang