[NTG-context] Different footers for frontmatter and bodymatter

I'd like to have two different footer setups: one for the frontmatter (titlepage and table of contents) where the page number in roman numerals is reported as a single centered footer. Another for the bodymatter where the chapter is on the left footer and the pagenumber is on the right. I can switch between roman numerals and numbers with ``` \defineconversionset [frontpart:pagenumber] [] [romannumerals] \defineconversionset [bodypart:pagenumber] [] [numbers] ``` but I can't figure out how to have two different footer setups. Right now I have ``` \setupfootertexts [chapter] [pagenumber] ```