[NTG-context] Section numbering starting from zero, not one

Hello, I'd like to have roman numerals prefixed sections, but starting from Zero and not One (even if I know that roman numerals don't have a sign for 0). Is there a way to achieve this? My code looks like that at the moment: ### \setuphead[section][conversion=Romannumerals] \starttext \setupheadnumber[section] [-1] \startsection[title={Section zero}]\stopsection \startsection[title={Section one}]\stopsection \stoptext ### Thank you, Alex