We have added 6 new charges that can be named by the user. 2 tied to the
unit of measure (miles or hours), 2 tied to the day and 2 tied to the leg.
In the above example we have named two hourly charges as: "Copilot"
and "Flt Att". 2 daily charges are "Crew Expense" and "Service" and, finally,
2 leg charges as "Position Fee" and "Facility Charge"