Started the Vehicle tab, first four settings can be read, started working on write.
On vehicle tab, added a Save button, finished the write section for the first 2 settings. Should work, have not tested.
Fixed a bug, economy variable could not be read, it now does.
Added "Please Click enter" message to vehicle tab, optimized search for line numbers using headings in the config file. Now searches for the headings, then searches for each setting in between 2 headings. Much more efficient.
Added maxAir, maxRoad, maxShips, maxTrainLen, and maxTrains to Vehicles tab. All can read and write to the config file. All display correctly.