\fillintext

Summary

The command \fillintext is used for empty fill-in space

\fillintext[...=...,...]{...}{...}
...=...,...	inherits from \setupfillinrules
{...}	text
{...}	text

Creates whitespace wherein a respondent may write an answer.

\setuppapersize[A7,landscape]
\starttext
\fillintext[width=3cm]{start of field}{extra argument} \input ward \par
\stoptext

This gives:

Note: the width here is the width reserved for the first argument plus the requested whitespace.

All issues with: