fuel system

[pap]

Hello!

I have a question about fuel system in fs2004 747 aircraft. (also in the version of pedro oliveira)

If engine 3 is up and running, and if I select in offset 2254 (means tank selector for engine 3) the value 3 (means right), fs2004 or the aircraft modell drains tank RightAux first, and if this is empty, it drains the selected right tank.

Does anybody know if it is possible to tell fs2004 or the aircraft, that engine3 only drains tank RIGHT, not rightaux?

Same for engine2 left and leftaux tank.

Thanks for any help.

Peter