Add info objects to DSO 0PUR_O01

I am trying to load data from datasource 2LIS_02_ITM into a DSO. I found DSO 0PUR_O01 to load as first layer befor loading into the cube.But i do not find goods received aty and purchase order qty in this DSO.Instead of creating 2 new KF info objects and adding them to DSO can i add the BI content objects (0D_PO_qty,0D_GR_QTY) to the DSO and then load?

Thanks

SS