[NTG-context] gridline question

Dear list members: I use \setuplayout[grid=yes] option in my document to snap lines to gridlines. But I don't want figure text to be snapped to grids. Figure text is typeset in smaller fonts and the lineskip becomes too big. How can I turn snap to grid off for a block of text or for figures or figure legends? Here is an example: \setuplayout[grid=yes] %\showgrid \setupcaptions[location=bottom,width=fit,align=last,headstyle={\tfxx},style={\tfxx}] \starttext \input ward \input tufte \placefigure{An example figure. \input ward }{\framed[width=0.5\textwidth]{A figure}} \input zapf \stoptext Thank you in advance, bcsikos