Partial Budget C/F

Dear All,

I am carryforwarding Internal Order budget with Tcode : KOCO / KOCF and working fine.

Now i want to transfer Part budget amount to carryforward.

i.e for e.g i have balance budget Rs. 50000/- for F.Y 2009 and i want to transfer only RS. 20000/- balance amount to F.Y 2010.

Is it possible ? If possibel then How to transfer partiall balance .

Pl help so that i can process further entries.

Regards

Swati