You could try using \writebetweenlist hooked into \setuphead[chapter]?
Something like (untested):

\setuphead[chapter][before={\writebetweenlist[figure][location=here]{\blank}}]

(Sorry, can't currently test this.)

Duncan

On Thu, 31 Mar 2022 at 06:31, Werner Schmidt via ntg-context <
ntg-context@ntg.nl> wrote:

> Hi,
>
> How can I set up \placelistoffigures and \placelistoftables that figures
> and tables are grouped by chapter, i.e. separated by a blank line between
> chapters (see example below)?
>
> Thanks in advance for your help!
>
> Best Werner
>
>
> (Default:)
> Figures
>
> 1.1 Caption Chapter01-Section01-01 . . . . . . . . . . . . . . . . . 2
> 2.1 Caption Chapter02-Section01-01 . . . . . . . . . . . . . . . . . 3
> 2.2 Caption Chapter02-Section01-02 . . . . . . . . . . . . . . . . . 3
> 3.1 Caption Chapter03-Section01-01 . . . . . . . . . . . . . . . . . 4
> 3.2 Caption Chapter03-Section01-02 . . . . . . . . . . . . . . . . . 4
> 3.3 Caption Chapter03-Section02-03 . . . . . . . . . . . . . . . . . 4
>
> (Wanted:)
> Figures
>
> 1.1 Caption Chapter01-Section01-01 . . . . . . . . . . . . . . . . . 2
>
> 2.1 Caption Chapter02-Section01-01 . . . . . . . . . . . . . . . . . 3
> 2.2 Caption Chapter02-Section01-02 . . . . . . . . . . . . . . . . . 3
>
> 3.1 Caption Chapter03-Section01-01 . . . . . . . . . . . . . . . . . 4
> 3.2 Caption Chapter03-Section01-02 . . . . . . . . . . . . . . . . . 4
> 3.3 Caption Chapter03-Section02-03 . . . . . . . . . . . . . . . . . 4
>
> ___________________________________________________________________________________
> If your question is of interest to others as well, please add an entry to
> the Wiki!
>
> maillist : ntg-context@ntg.nl /
> http://www.ntg.nl/mailman/listinfo/ntg-context
> webpage  : http://www.pragma-ade.nl / http://context.aanhet.net
> archive  : https://bitbucket.org/phg/context-mirror/commits/
> wiki     : http://contextgarden.net
>
> ___________________________________________________________________________________
>