message: Work for - added expression question to the matrix dropdown
diff: @@ -123,6 +123,10 @@ export var matrixDropdownColumnTypes = {
  onCellQuestionUpdate: (cellQuestion, column, question, data) => {
  cellQuestion.showTitle = true;
  }
  + },
  + expression: {
  + properties: ["expression"],
  + onCellQuestionUpdate: (cellQuestion, column, question, data) => {}
  }
  };
  