Editing Ship Fuel?

[Splinter00S]

So I'm working with a scenario which has a fleet crossing the Atlantic, and after a port visit they fight their way into the Mediterranean. While most of the ships can make the journey, a couple of the smaller ships (namely the Badr corvettes) don't have the endurance for a straight shot, and don't have UNREP capability. Is there a way to manually edit the fuel load of a ship? I can't find any reference to fuel in the LUA scripting documentation, nor have I been able to add a refueling capability to the ships through a delta ini, and it seems the "set fuel and airborne time" option only works with aircraft. I'd just like an option to set the fuel or add UNREP refueling so I can at least simulate that they've been modified to refuel at sea (or port) so that the mission can start just outside the Mediterranean with a plausible fuel load rather than full tanks.