Key Figure Result and Hierarchy node on BEX query

Hi experts,

i would obtain this result in the BEX query with hierarchy product active:

   level1     100 %

      prod1  33%

      prod2  66%

      prod3   0%

So, i would like to manage the aggregation in this way : if at least once sub node (prod1, prod2 e prod3) have percentage > 0 , the node result must be 100 %.

It's possible?

Thank you very much.

Best Regards.

Andrea