Colleagues

I'm preparing a booklet of figures which are stored in a directory, however their is no structure in their naming. I could go through them all and rename them along the lines of Pict1.jpg, Pict2.jpg etc and \dostepwiserecurse as in the example below

\setupexternalfigures [directory={/a/directory}]
\starttext
\dostepwiserecurse{1}{10}{1}
{
\externalfigure[Pict\recurselevel.jpg]
}
\stoptext

However, I was wondering if was possible to iterate through the directory using a wildcard and have something like

\externalfigure[*.jpg}

to make it generic, or would I have to use lua.

Best Wishes
Keith