Create Multiple return order from one service order

Hi Gurus,

I have to create followup of sub item(Material inbound and outbound) from service order to return order.

To full fill this i have created the copy control and able to followup from service order to return,

the problem is When i am doing followup of sub item from service order to confirmation, then system is not allowing me to do the followup of same sub item from service order to return.

so need any way to do followup of same sub item in different order.

Please help me on this.

Thanks,

Man