Dear Krishna,
Please find my post as Grigoriy suggested and let us know whether its can fulfill your requirement,
Just mind below point while doing customization.
Exmple:
-5.000.000 Investment 1
-5.000.000 Investment 2
+10.000.000 repayment
Above is possible but below example is not, Please write to SAP they might help you out
10.000.000 Investment
+5.000.000 Repayment 1
+5.000.000 Repayment 2
As both repayments on end date on same date but from different bank, Still it will not accepted by system.
Regards,
Jain