Dear all: I just conducted some follow up experiments on my previous questions, and found out that... (1) In re producing run-in text following a subsection header: neither [after={\blank[none]},] nor [after=\nowhitespace,] have any impact: I still get the subsection header on one line, and the text on the next line. (2) In re horizontal alignment, I guess there is some sort of inheritance going on here? In the setup below, I had hoped to obtain the section header in the middle, and the subsection header flush left, since "subsection" had not be re-defined at all. However, once I define section to be [align=middle,], the remaining headers follow suit, even when no \setuphead command is written for them: \setuphead[section][ align=middle, ] \starttext \section{Will this work?}Hello world! So here comes a subsection that, not having been defined, would ideally display at the default location, which is flush left. \subsection{Is this flush left?}No, it isn't. \stoptext