KVpnc can import OpenVPN configuration files which contain inline certificates (user certificate, ca certificate, private key, tls-key).
The format for the inline parts must be:

<ca>
-----BEGIN CERTIFICATE-----
...
-----END CERTIFICATE-----
</ca>

<cert>
-----BEGIN CERTIFICATE-----
...
-----END CERTIFICATE-----
</cert>

<key>
-----BEGIN RSA PRIVATE KEY-----
...
-----END RSA PRIVATE KEY-----
</key>

key-direction 1
<tls-auth>
-----BEGIN OpenVPN Static key V1-----
...
-----END OpenVPN Static key V1-----
</tls-auth>