On 9/14/2023 5:49 PM, Jeroen wrote:
> In the \startbackmatter ... \stopbackmatter section i would like to 
> have some chapters that are not automatically placed on a new page for 
> the next chapter. Is there an easy way to suppress the new page for 
> these chapters?
> Thanks, Jeroen
>
Untried:

 1. Define a new section head that clones chapter
    (\definehead[NPChapter][chapter]).
 2. Modify the new section head so that it does not do a break
    (\setuphead[NPChapter][page=no]).
 3. Use the new section head instead of \chapter or \startchapter.

-- 
Rik