On a Service Request with Task, how can I derive task owner from territories but not the SR Owner?

Hi,

I have a requirement to derive the Task owner on a service request task from the territories, but not the SR Owner. If I set the profile option "Service: Real-Time Automatic Assignment of Service Requests in Agent-Facing Applications" to "Yes" it allows deriving the task owner from territories, but it also derives the SR owner from the territories. If I set the profile option to "No" it derives neither of them from Territories. Is there a way to just derive the Task Owner but not the Service Request owner from territories? Our processes are driven by task assignments and hence