Assigning additional temporary limit to a particular customer along with its regular limit in FD32

In FD32, we want to assign a temporary limit to a particular customer under specific credit control area for limited period.

For e.g: In FD32,

Customer= 100

Credit Control Area= CCA1

Credit Limit= 25000

Now I want to assign additional temporary credit limit of 50000 to this customer only.

Currently we have provision in transaction OVA8 called "Credit limit seasonal factor" where we can put additional limits in % for a specific period, but it is applicable to all the customers under that credit control area. I want to change it for a single customer only.

It would be great if anyone can help me in this scenario.

Thanks in advance.