sudo kill -9 xxxx (where xxxx is the relevant process ID)
5.(a) All the SiTech software can be opened using a startup script in the home directory, then leave the terminal running:
sudo ./startup.sh
sudo systemctl restart lesedi
sudo systemctl restart lesedi-web
exit (to leave the ssh session)
exit (to close the terminal)
7. If you ever need to restart either ServoSCommunicator or SiTechExe, you will first need to close all the other subsystem GUIs, and reopen them in the order above.