\useMPlibrary[dum]

\setuplabeltext[en][figure={LEFT , RIGHT}]

\definereferenceformat[infigure][label=*]

\setupcaption
  [figure]
  [textcommand=\groupedcommand{<}{>},
   numbercommand=\groupedcommand{[}{]}]

\starttext

    \startplacefigure[reference=fig:dummy,title=Dummy figure]
        \externalfigure[dummy]
    \stopplacefigure

    See \infigure[fig:dummy].

\stoptext
