Input Schedule designing - dynamic logic in each row

Dear Members,

I need to design a input template which has 3 dimensions in row - CostCenter, INTERCO & Account. Account derived is based on Property Filter. CostCenter & Interco has to be dynamically derived based on the account's Property in each row.

I am not able to pass derived INTERCO(S18) & COSTCENTER(R18) into EPMOlapMemberO formula(Column E&F).  My question is - how to pass derived values INTERCO(Col S) & COSTCENTER( Col R) into OLAPMEMBER formula (E&F Column)

Note - Number of rows will differ every time if we change selection for execution.

Please refer attached picture.