This can be changed with the "id"-Parameter. Here an example of my liveries:
...
{"pilot_P51_helmet_B", 0 ,"pilot_P51_helmet_b",false};
{"pilot_P51_head_B", 0 ,"pilot_p51_head_a",true}; -- pilot face color (head_a or head_b)
}
name = "Swiss J-901 Evaluation"
--countries = {"SUI","USA"}
id = 10 -- Tuskegee Airmen
--id = 4 -- USAF Pilot with WWII helmet