Refueling External Tanks

Greetings,

Is there a gauge, or work around to refuel the external tanks without going into the fuel settings of the aircraft??? I know you can design a gauge in XML, or make a keyboard shortcut...but those fill all the tanks except the externals. It's just sort of a annoying to keep going into the fuel settings just to refuel the external tanks.

                                                         Thanks

                                                       J.R. Duda