no you need to add to the user list the countrys you want or that use the aircraft
from TMF F-8D
[uSN]
ServiceStartYear=1961
ServiceEndYear=1967
Availability=RARE
[uSMC]
ServiceStartYear=1961
ServiceEndYear=1967
Availability=RARE
if you want you add more nations lets say Dhimar bought some then the user list must be like this
[uSN]
ServiceStartYear=1961
ServiceEndYear=1967
Availability=RARE
[uSMC]
ServiceStartYear=1961
ServiceEndYear=1967
Availability=RARE
[Dhimar]
ServiceStartYear=1967
ServiceEndYear=1989
Availability=RARE
now for this to work open the data ini for mthe F-8D and change it like this
Exported=FALSE<-----------set to TRUE
ExportStartYear=1967<--------or any outher date
ExportAvailability=RARE
thats all you need to change
user list his made to limit the aircraft from show on outher terrains or making country specific aircraft i think?