If you no longer need these processes, as well as the tutorial, you can easily archive them. Simply click the More button on the process card and select Archive.
To view the Archive click the View button at the top of the process list and select Archive.
From here you can either delete the process forever, or restore it back to the main process list. Think of the Archive like the recycle bin on your computer.
To return to the main process list click the View button again and choose Active Processes.