Qty numbers shown in BOMs

Hi,

I have been setting up a drawing structure for our company and I think I have it almost ready but I have noticed a problem in the QTY column of my BOM.

If I show 2 or more of the same sub-assembly in an top level assembly the indented BOM I have setup recognises that there are 2 of that assembly but beneath this it only shows one of each of the components that make up that assembly, where I would like it to show the multiples of the component parts. 

Is it possible to achieve this?

I have (hopefully) attached an image to illustrate what I mean.  The cover assembly shows QTY of 2 but the parts of that assembly, the Tray and Wire Mesh, only show 1 of each of these parts.

Thanks

SolidworksDrawings And Detailing