[NTG-context] hoffset and voffset have no effect

Hi everyone, I cannot see any effect when using voffset and hoffset as a parameter for \startstandardmakeup. For example: \startstandardmakeup[headerstate=none, footerstate=none, hoffset=1in, hoffset=1in, width=4in, height=7.0in] ... \stopstandardmakeup I'd expect them to shift the page content up and to the right, respectively. This is guessing from their name: I actually cannot find any documentation on these parameters. Am I missing something? Thanks, Michael