Dear Hans and ConTeXters, I go back to this question since it was not answered:

is possible to change sorting order (e.g. sort in reverse order: not A, B, C but C, B, A) in the mechanism:

----- \definesorting[address][addressbook] \setupsorting[address][criterium=all] \address{A} \address{C} \address{B} \placelistofaddressbook -----

I was looking for something like 'reverse=yes' in \setupsorting definition and texexec perl sort function calling, but it seemed to me, it has not been implemented yet. Am I right? I still do not have insign to setup option passing and parsing mechanism in ConTeXt macros, but who knows, the implementation might be very easy. I would need it for sorting simple scoring points. Using external (Perl or XSLT) engine ia like a hammer to mosquitos. I can solve to problem by forward sorting and TeX macro language but Perl solution is more effective. Thank you Vit Zyka