All actors with a NetworkPhysicsSettingsComponent and that are running resimulation and is ROLE_SimulatedProxy will change their physics replication mode. -1 = Disabled, 0 = Default, 1 = PredictiveInterpolation, 2 = Resimulation
Usage
np2.Resim.SimProxyRepMode [value]
Set via the console (~) or in DefaultEngine.ini / DefaultGame.ini.
