Auto populate Business Partner in ChaRM when a component is selected

Hi All,

We are implementing ChaRM and I want to auto populate a Business Partner (IT Operator) when a project/ Component is selected in a Change Request or Normal Change in SM 7.1 SPS06. I know that we can assign a BP to a component from transaction IB52 (ibase), but I can't see an option for Specific Business Partner like IT Operator. If I add this as contact person, it can't recognize it as IT Operator.

Thanks,

Pradeep