Controlling remote/parallel and local rendering

I would appreciate any guidance how I might be able to control which pipeline objects are rendered remotely (the preference) and which are rendered locally.

With the Remote Render Threshold set to zero, can I use this method:

servermanager.Fetch()

to achieve this?
Or, will the Remote Render Threshold override it?

Thanks in advance for any suggestions.

RemoteRenderThreshold setting let you control that depending on the size, I dont think there is any other controls.