[NTG-context] placefigure RTL

Hello, Is there a way to make \placefigure[left,right] work in RTL documents? Here's a MWE: \starttext \setupalign[r2l] \placefigure[none,right]{}{\externalfigure[cow]} \input knuth \placefigure[none,left]{}{\externalfigure[cow]} \input knuth \page \setupalign[l2r] \placefigure[none,right]{}{\externalfigure[cow]} \input knuth \placefigure[none,left]{}{\externalfigure[cow]} \input knuth \stoptext Thanks a lot, --MHB