There is no electrically assisted fuel transfers to configure the load in its tanks for optimum efficiency and this jet is at times at least four hours from Australia during which some fuel transfers would be expected to take place.
Does it really matter?(other than for CG purposes) From any given initial configuration, there will always be fuel available from the wing tanks to feed all four engines (certainly sufficient for four hours of flight). The crossfeed valves are open for most of the flight, so if the outboard tanks starve, one would assume that the inboard tanks would continue to supply fuel to the outboard engines.
(EDIT): Looking at the wiring diagrams, the main crossfeed valves (1~4) are battery operated. It would be up to the crew to decide whether on not they wanted to mess around with the valves prior to running the batteries flat, but I really don't think they need to open/close them.