Streamlining Aged debtor report

Would it be possible to alter this report so that when you get the same client appearing for the same policy the debt is summarised all on 1 row under the different periods, rather than a line per entry.
This is particulary applicable with Term cases where monthly commission values are low but due to Providers agency thresholds it can, in some cases, take many months to reach this figure. So rather than have multiple lines you just have 1.