Partner det process- Redetermination for specific BO types

Hi all

I would like the functionality "Redetermination" for business object Activity/Sales call. As of now this selection is available for my lead and oppty.

I read that this is Business Object specific and for activity/sales there is no entry maintained in table COMS_Partner_Det

i would want to know if there is any other way than coding to achieve the same?

I want the same "re-determination" functionality avaible for activity and sales PDP.

Please help with some inputs

regards

Dhruv