BOM HDL - Parts of Same Vendor Part Number not Grouped

Hi,

Please help on the generation of BOM.  While generating bom, parts are placed per row.

Example:

Row 1 - C1 , C0805C104K3RACTU

Row 2 - C2, C0805C104K3RACTU

How can I make it this way:

Row 1 - C1, C2 - C0805C104K3RACTU

Thanks,

Maberu