0 = disabled but runtime togglable, 1 = enabled and not togglable, 2 = enabled but runtime togglable. Requires Net.IsPushModelEnabled is true and WITH_PUSH_MODEL > 0 to use push based dirtiness in the backwards compatibility mode.
Usage
net.Iris.PushModelMode [value]
Set via the console (~) or in DefaultEngine.ini / DefaultGame.ini.
