[NTG-context] How to prevent sentence-case arttitle in the bibliography?

I seek to prevent any modification of the capitalization of article titles in the bibliography. What do I need to change in the ConTeXt code to achieve this? The other citation styles I tried besides APA also feature lowercasing. I am aware of a workaround: Enclosing the capital letters in the .bib file with curly brackets. However, I would prefer a method that does not involve editing the .bib database. I use Mark IV. My approach was to edit /usr/share/texmf-dist/tex/context/bib/bibl-apa.tex, however, I could not find a way to locate or modify the macro \insertarttitle. Regards, Andreas Becker