BOP filter in APO-GATP

Hi Guys,

Below is my query.

For BOP filter, i tried to configure both material group (MATKL) and product number (MATNR) and in BOP filter system is allowing me either of one only, is there any way I can use both. To elaborate below is my requirement.

1. A set of Materials were grouped together in a material Group (MARA-MATKL) which will update in /SAPAPO/MAT1 as material group as well, and for some materials from the same group I need to have a provision to select specific product numbers. Is there any possibility?

Thanks,
Chand