[NTG-context] Figure numbering with parts

Hello, I want to number my figures like this: partnumber.sectionnumber.figurenumber I didn't find documentation on \setupnumber. I tried: \setupnumber[figure][way=bypart, numberpart=yes] \setupnumber[figure][way=bypart, numberpart=yes, prefixsegments=part] But when changing part, the numbering starts again at 1. Thanks