Sorry. Here is a sample code. Thank you. Best regards, Dalyoung \startuseMPgraphic{recBox}{w,h,sx,sy,lColor} numeric u; u := 1cm; draw unitsquare xyscaled (\MPvar{w}, \MPvar{h}) shifted (\MPvar{sx},\MPvar{sy}) withpen pencircle scaled 3pt withcolor \MPvar{lColor}; \stopuseMPgraphic \defineoverlay [kBox] [\useMPgraphic{recBox}{w=2u,h=LineHeight+4pt, sx=.8u,sy=LineHeight-2pt,lColor=darkred}] \starttext \framed[frame=on,background=kBox]{ \starttable[|cw(.7cm)|cw(.7cm)|cw(1cm)|cw(1cm)|] \HL \NC \NS[2][c] q \NC\AR \NC p\NC \NC 00 \NC 01\NC\AR \HL \NC 1 \NC 2 \NC 3 \NC 4\NC\AR \NC 1 \NC 2 \NC 3 \NC 4\NC\AR \NC 1 \NC 2 \NC 3 \NC 4\NC\AR \NC 1 \NC 2 \NC 3 \NC 4\NC\AR \NC 1 \NC 2 \NC 3 \NC 4\NC\AR \HL \stoptable } \stoptext