1). Open your OpenERP Report Designer and Click on Server Parameters
2). Select your server and port
3). we are going to add a new table in Sales Quotation, click modify Existing Report.
4). from the list we can select SalesOrder-Quotation / Order
5). Once its open you can add aSection from Insert tab.
6). Give a name for your new Section.
7). insert Colomns from the Table icon.
8). As per your requirement you can choose number of Columns in the table .
9). select all the table and hide border color (ref. image)
10). Now you can add new Table (eg:- Row 1 x column 5 ) same as we added early. here row border will not work in the reports, thats why we are giving multiple tables, if you want 5 rows then you have to add 5 tables.
see the image, here am added a new table under the first table.
12). Select columns you need to give borders and give the borders from the border properties.
13). Send to Server.