IText ICell IRow HSSFWorkBook Select multiple rows to copy

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itextsharp

Hello all I am working on a excel template where I have data inserted into a excel sheet and the template the data is being inserted into spans across multiple rows.
Currently the data is inserted for a trip one way.
Well a Driver can have more then 1 trip on a particular day, so the rows that is being used needs to get copyed so it can duplicate itself to have data entered for other trips.

Currently I have data across 1 row working insert the fields in only 1 row and it will copy the row and duplicate itself so new data can be entered.
When I try for multiple rows I cant figure out how to select multiple rows
Here is the code to select 1 row, how a cell is created. And then another different cell

IRow template_row = sheet.GetRow(start_row);

IRow hRow = sheet.CreateRow(row_index);
       hRow.Height = template_row.Height;
{
                    ICell hCell = hRow.CreateCell(colMemberName, CellType.STRING);
                    hCell.CellStyle = template_row.GetCell(colMemberName).CellStyle;
                    hCell.SetCellValue(!String.IsNullOrEmpty(record.CustomerName) ? record.CustomerName : String.Empty);
                }
 
            {
                    ICell hCell = hRow.CreateCell(colWaitTime, CellType.NUMERIC);
                    hCell.CellStyle = template_row.GetCell(colWaitTime).CellStyle;
                    hCell.SetCellValue(record.WaitTime);
                }