CRM - Reference Object in Service Order

Hello experts,

I am implementing in BW the CRM standard infocubes, more specifically service orders infocubes.

But now i am facing an issue, i need the subitems(reference object associated to items) from the service orders and the datasource 0CRM_SRV_PROCESS_I don't have this information, it only gives info up to items.

I made a research and there is na ODS (0CRM_OL) which is filled by the extractor 0CRM_PROD_OBJ_LIST, and has the information of service contracts + objects list. Is it possible to change the configuration of the extractor go get the information of the service orders business object?

If the above isn't possible, how do i add this info to the infocube? Or does exist any other infocube/ods that gives me this info?

Regards.