ITEM QTY UOM WISE

Hi

i want to see one item qty in different UOM ......and already conversion is defined.....

for example

ITEM NAME : PENCIL

PRIMARY UOM: PIECE

INTRA CONVERSION: 1 BOX =12 PIECE

and when i enter qty through miscellaneous transaction and select item pencil ..in primary UOM select piece and qty 100 and again enter the same item in new line and select UOM box and enter qty 500 

bt when i go to on hand qty for the checking of qty in that item....it shows total 600...

bt i want to see UOM wise qty i mean piece 100 and box 500

how it is possible?

waiting for response