Am 15.02.2014 um 02:30 schrieb Troy Henderson <thenders@gmail.com>:

> 
>     \setupuserpagenumber[viewerprefix=titlepage]
>     \startstandardmakeup
>         The first page
>     \stopstandardmakeup
>     \setupuserpagenumber[viewerprefix=p ]
> 
> I'm clearly missing something.

Have you updated you installation because the viewerprefix key was added yesterday.

>         \dorecurse{2}{\mbox{}\page}

\dorecurse{2}{\dontleavehmode\page}

Wolfgang