Helmut Schwertner wrote:

if I use the \setuphead[][] command like this way

\setuphead [section] [alternative=inmargin, numberstyle=bold, textstyle=bold]

I can use features how > normal, bold, slanted < and so on. What is to do, if I want to combine two features e.g. bold _and_ 18pt (Fontsize)?

Hello Helmut, I'd probably use the normal font switching commands, you'd use in normal markup. So, if I was using a body font of 11pt and wanted to have a section header in bold & 18pt, I'd use the font switching command \bfc. This would be used in your preamble like this \setuphead [section] [alternative=inmargin, numberstyle=\bfc, textstyle=\bfc] Of course, this is because I'm particularly lazy. To do it correctly, so someone reading your preamble has a chance of understanding it, you'd make it as self-documenting as possible. The correct preamble, would then look like: ------------------------------------------------------------ \setupbodyfont[11pt] \setuphead [section] [alternative=inmargin, numberstyle=\SectionFont, textstyle=\SectionFont] \definefont [SectionFont][SerifBold at 18pt] \starttext \section[sec:one]{Section One} \input tufte \stoptext ------------------------------------------------------------