Hi Wolfgang,
Thank you for this nice solution.
Fabrice

Le mar. 27 juil. 2021 à 21:31, Wolfgang Schuster via ntg-context <ntg-context@ntg.nl> a écrit :
Fabrice Couvreur via ntg-context schrieb am 27.07.2021 um 18:57:
> Hi,
> The name of the environment must always end with a dot both with a title
> and without title. How to do ?
> Thanks
> Fabrice
>
> [...]


You can create simple dummy environments to test the parameters.

\defineenumeration
   [grouptest]
   [        title=yes,
             text={dummy text},
        titleleft=,
       titleright=,
      headcommand=\groupedcommand{[}{]},
    numbercommand=\groupedcommand{(}{)},
     titlecommand=\groupedcommand{<}{>}]

\starttext

\startgrouptest [title={dummy title}]
\unknown
\stopgrouptest

\startgrouptest
\unknown
\stopgrouptest

\blank[2*line]

\setupenumeration
   [grouptest]
   [number=no]

\startgrouptest [title={dummy title}]
\unknown
\stopgrouptest

\startgrouptest
\unknown
\stopgrouptest

\stoptext

Wolfgang
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