to create material group as commitment item

Hi All

I have one question. We want to entry budget material group ( MATKL ) level. For example we have material group as A100 - A101 - A102 - A103 - ... A110. I want to entry budget using these material group in FMBBC. I want to create commitment item for all these material group from A100 to A110.Then I will  set up derivation rule in FMDERIVE using table lookup. But these meterial groups from A100 to A104 are using same inventory account ( for instance 1500101 account ).

I want to ask that method is possible? Can I create a derivation rule for on this scenario?

Thanks for your advice