Hello and thank you for contacting us, this is Martín, Tech Support Engineer from Teltonika Networks.
For this case you would need to add your device as an OpenVPN client to the OpenVPN Cloud service. You can do so by producing an .ovpn file on the platform and importing that file under the VPN configuration of the RUT955.
Instructions to connect to the VPN with this file are attached here, under the Enable OpenVPN config from file setting.
This will enable you to connect to the VPN as a client, and to enable communication to the computer you will need to establish the correct routing rules as to allow the traffic from the laptop connected to the RUT955 to the network of the VPN.
I have also attached here the Wiki page for the routing rules.
I remain attentive to any further questions.