Hi Mohit,
You can't add blank row because while adding name to it system will ask for characteristic/ Formula , so if you select characteristic and you can give appropriate characteristic like Admin, sales and distribution ,Production ,(I am assuming you are using library which have table GLFUNCT for report.). and it will show the figures
But i think you can try this, check in library assuming you are using custom defined (cannot change which SAP defined i.e starts with 0) is there any characteristic which you can use while creating the row.
Regards
Atul