Invoice correction request

Hi Gurus,

I have a situation here. I have a billing document with manual condition type ZBA1 (50$), which was entered wrongly. This invoice was sent to the customer.

Condition type ZBA2 ($40) was supposed to entered instead of ZBA1. so, we overcharged the customer by 10$.

Now i create a invoice correction request wrt Billing invoice. All the conditions including ZBA1 gets copied over for item 20. I try to remove ZBA1 and add ZBA2 condition type. Here' I DO NOT want to reprice any other price condition types, but want manual condition ZBA2 price to be applied and ZBA1 price reduced. If i use option 3 - Copy manual pricing elements  and redetermine other" option then it will reprice other conditions as well.

Is there any way to achieve this?

Thanks

Nidhish