I am trying to number my bodymatter chapters differently than my appendix chapters but with little success. My attempts include the following: n If I do not assign a 'sectionconversionset' then the bodypart chapters are numbered with numerals and the appendix chapters are numbered with characters. However, sections and subsections are numbered with numerals in each the bodypart and appendix --- I don't want that. n Assigning a 'sectionconversionset' for the bodypart and appendix results in all chapters being numbered with numerals. Sections/subsections are still numerals. n Assigning a 'sectionconversionset' separately for each head type produces no change compared to the previous method. I obtained these results with the 2017 TeXLive version of ConTeXt 2017.05.15. The same result occurs with live.contextgarden.net. I've tried multiple variations, all with the same result. Any ideas would be greatly appreciated. Thanks. Kenny The rest of the message is a minimal example: \startsectionblockenvironment [bodypart] \definestructureconversionset [bodyset] [I,N,KR,a,m] [N] % unusual combination for testing \setuphead [chapter,section,subsection] [sectionconversionset=bodyset] \setuphead [chapter] [style={\rm\bf}] \setuphead [section] [style={\ss\bf}] \setuphead [subsection] [style={\sl}] \stopsectionblockenvironment \startsectionblockenvironment [appendix] \definestructureconversionset [appendixset] [O,A,R,r,KA] [R] \setuphead [chapter,section,subsection] [sectionconversionset=appendixset] \setuphead [chapter] [style={\rm\bf}] \setuphead [section] [style={\sans}] \setuphead [subsection] [style={\sl}] \stopsectionblockenvironment \setupcombinedlist [content] [list={chapter,section,subsection}] \setuplist [chapter] [style=\bigbodyfont\bold, alternative=b,] \setuplist [section] [width=2.0em, margin=2.0em, alternative=c,] \setuplist [subsection] [width=3.0em, margin=4.0em, style=slanted, alternative=c,] \startdocument \startfrontmatter \placecontent[criterium=all] \stopfrontmatter \startbodymatter \startchapter[title={The First Numerals Chapter}] \startsection[title={The First Caps-Romannumerals Section}] \input knuth \startsubsection[title={The First characters Subsection}] \input knuth \stopsubsection \stopsection \startsection[title={The Second Caps-Romannumerals Section}] \input knuth \stopsection \stopchapter \startchapter[title={The Second Numerals Chapter}] \startsection[title={The First Caps-Romannumerals Section}] \input knuth \stopsection \stopchapter \stopbodymatter \startappendices \startchapter[title={The First Characters Appendix}] \startsection[title={The First Romannumerals Section}] \input knuth \stopsection \stopchapter \startchapter[title={The Second Appendix}] \input knuth \startsection[title={The First Romannumerals Section}] \startsubsection[title={The First romannumerals Subsection}] \input knuth \stopsubsection \stopsection \stopchapter \stopappendices \stopdocument