This section will let you create the self-signed CA (Certificate Authority) certificate. You will need it if you want to create the certificates for all the VPN parts involved in the tunnel. Make sure you have chosen "CA Key" on the top of the screen menu.
Click on the Next button to go to the Edit page and modify the entries.
When you are done with entries editing, click on the green mark by the Generate Autosigned Certificate label to generate the certificate.
These certificates will be used to generate and sign all the other certificates for both servers and clients. Here, we call "servers" a VPN configuration for several targets, and "client" a VPN configuration for only one target.