RobotStudio Remote Connection

pbm_rml

Hi,
we are wanting to setup robotstudio to view a reemotely connected robot. What ports do we need to set for port forwarding to allow us to view the Rapid.
Currently have ftp ports 20 and 21 set to forward to robot and ports 5512 to 5515 setup to port forward.
This allows us to connect using Robotstudio 5.15 to the controller and to make backups but unable to expand any of the robotstudio tree.