New Basis for rollover

Dear All,

We want to activate manual input for the netting transaction while making a rollover.

If we activate "New basis" for transaction type 102, the manual input is available for both rollover and premature settlement.

But we do not want to activate "New Basis" for Premature Settlement.

We want it only for rollover.

How to enable the "New Basis" for Netting transaction only for Rollover?

Thanks,

Vinod P