[NTG-context] Footnotes in xtables

How do you get footnotes to work in xtables? I get the superscript next to the text but the footnote does not appear at the bottom of the page. Thanks, Clyde MWE: \starttext \startxtable \startxrow \startxcell Alpha \stopxcell \startxcell Beta\footnote{Footnote Here} \stopxcell \stopxrow \startxrow \startxcell Beta \stopxcell \startxcell Alpha\stopxcell \stopxrow \stopxtable \stoptext