Good evening. Many thanks for your help. Basicly it works. Problem is that it spoils formatting. Try the following example. The answers defined through block are not serried, while the last one defined directly is. Could it be solved somehow? Many thanks once more. M.K. P.S. Does it mean that blocks cannot be reasonably linked to XML-marks too? % output=pdf \defineenumeration[question] [way=bychapter, coupling=answer, location=serried, text=, distance=0pt, width=broad] \defineenumeration[answer] [way=bychapter, coupling=question, location=serried, text=, distance=0pt, width=broad] \defineblock[question, answer] \hideblocks[answer] \setupblock[question][before=\startquestion,after=\stopquestion] \setupblock[answer][before=\startanswer,after=\stopanswer] \starttext \chapter{Questions} \beginquestion Question one \endquestion \beginanswer Answer one \endanswer \beginquestion Question two \endquestion \beginanswer Answer two \endanswer \chapter{Answers} \reset[question,answer] \useblocks[answer] \startanswer Answer three \stopanswer \stoptext