Hello.
I use \vbox to separate headtext from text in chapter header by new line.
\define[2]\MyChapterCommand{\vbox{\centeraligned{\headtext{chapter} #1.\\#2}}}
\define[1]\DotAfterNumber{\doiftext{#1}{#1.}}
\setuphead[chapter][command=\MyChapterCommand]
\setuphead[title][numbercommand=\DotAft
Hello.
I use \vbox to separate headtext from text in chapter header by new line.
\define[2]\MyChapterCommand{\vbox{\centeraligned{\headtext{chapter} #1.\\#2}}}
\define[1]\DotAfterNumber{\doiftext{#1}{#1.}}
\setuphead[chapter][command=\MyChapterCommand]
\setuphead[title][numbercommand=\DotAft