Like every other VPN plug-in does.
[Desktop Entry]
-Name=VPN Connection Manager (OpenVPN)
-GenericName=VPN Connection Manager (OpenVPN)
-Comment=Add, Remove, and Edit VPN Connections
+_Name=VPN Connection Manager (OpenVPN)
+_GenericName=VPN Connection Manager (OpenVPN)
+_Comment=Add, Remove, and Edit VPN Connections
Exec=nm-vpn-properties --import-service org.freedesktop.NetworkManager.openvpn --import-file %f
Icon=gnome-mime-application-x-openvpn-settings
Terminal=false