We need to group customers/vendors. ( Select 3 or 4 customer and create a group)

We need to generate aged partner balance by selecting that group ( Show balance of the total group or in split view)

Ex: Create Group : GroupA with customer1, customer2, customer3.

Generate Aged Partner Balance showing 

GroupA : Total Aged Partner Balance

Customer1 : Aged Partner Balance

Customer2 : Aged Partner Balance

Customer3 : Aged Partner Balance