Import/Export with CLI
Documented with FortiClient VPN-only 7.4.3.X
Import Configuration with CLI
"%ProgramFiles%\Fortinet\FortiClient\FCConfig.exe" -m all -f "<Path-to-Configuration-File>" -o import -i 1 -p "<Passsword>"
Export Configuration with CLI
"%ProgramFiles%\Fortinet\FortiClient\FCConfig.exe" -m vpn -f "<Path-to-exported-File>" -o export -p "<Password>"