I figured out that \fullstructureheadnumber returns inside a backmatter nil. So it works for my own needs.
I do not know if the reported return behavior inside a bodymatter or appendices is correct. But I leave this discussion to the context devs. Anyways @devs: Thanks for your work! Context became real cool stuff! ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________