VPN - Can't set authentication type by certificate

[a_subscriber]

Linux Mint 20.2

I has 3 files:

Code: Select all

my-ca.pem
my-cert.pem
my-key.pem

So I want to use it to connect to remote host by VPN. I install OpenVPN and go to Network settings

So the question is: Where I can set


CA certificate
User certificate
User private key

as PEM files?