Easy enough… (changed the syntax to include row)
To decide what K is (tc - value of kind K valued table column) column for/of row (row-num - a number) in/from (tbl - table name):
(- TableLookUpEntry({tbl}, {tc}, {row-num}) -).
To set (tc - value of kind K valued table column) column for/of row (row-num - a number) in/from (tbl - table name) to (v - K):
(- TableLookUpEntry({tbl}, {tc}, {row-num}, 1, {v}) -).