[NTG-context] the closing bracket (structuring syntax)

Hi, in XML and alike there is a concept of dedicated start/stop in formatting: <begin heading> ... <end heading > <begin footnote> ... <end footnote > <begin italic> ... <end italic> But in ConTeXt/TeX we have always the same closing syntax "}". That makes reading the code not easier. Is there a workaround to define the closing more precisely (like the examples above), so that finding a "}" in a ConTeXt source lets me distinguish what it's about? But in such a way that the file still can be processed as a regular ConTeXt file? Steffen