[NTG-context] Center-Aligment in column spans

Hi, my table is: \starttext \starttable[|l|l|l|] \NC {\bf Methode} \VL {\bf Relevanz} \VL {\bf Bewertung} \SR \HL \use{3} {\it Natürliche Methoden} \SR \NC Klevirak \VL 5-6 \VL Toll \AR \stoptable \stoptext I know want the spanning column with the entry "Natürliche Methoden" to be aligned in the center ob the cell. Direct trys with \startaligment[center] failed, who knows how? Thanks Huseyin