RUT9XX_R_00.06.04.2 firmware is available, upgrade and you should see information in Status > Network > Openvpn.
Did you manage to connect to OpenVPN server? I did some research on OpenVPN server on Mikrotik, and it has a few limitations:
Clients must use TCP connection and SHA1 authentication algorithm.
Have you enabled openvpn logging on Mikrotik and looked at the logs?
Have you tried pinging a servers tunnel endpoint IP address?