function conditionalNewRow() {
  var ss = SpreadsheetApp.getActive();
  var sh = ss.getActiveSheet();
  var headerRow = 1;
  var firstRow = headerRow + 1;
  var range = sh.getRange("A2:D2");
  var futureRange = sh.getRange("A3:D3");
  var numCols = range.getNumColumns();
  var contentVal = false;

  for (i = 1; i <= numCols; i++) {
    var currentValue = range.getCell(1,i).getValue();
    if (currentValue == "NA"){
      contentVal = true;
      break;
    }
  }
  if (contentVal == true) {
    sh.insertRowBefore(firstRow);
    futureRange.copyTo(sh.getRange(firstRow, 1, firstRow, numCols), {contentsOnly:false});
  }
}