Interest calculation on security deposit H

Hi,

I have configured the special GL Indicator H and i received the amount against the Indicator H against the Customer. Now i want to calculate the Interest on Security deposit.

1. it possible to calculate the interest on SD?

2. Same customer is applicable for open item interest.

If i am getting any answer it would be greatful for me.

Please i am waiting for your reply Eagerly.

Thanks

Sriram.