There is a VNC server on Vizy that you can connect to. Just point your VNC viewer such as RealVNC to vizy.local

Use pi and raspberry as username and password to connect.

Note, the VNC server is configured to use the usernames and passwords configured in Linux. So if you wanted to change the password for the pi username, you could do so from a shell. To bring up a shell, click on the ☰ icon in the upper right corner and select Shell. (Please refer to the getting started guide if you need help with connecting to your Vizy, etc.)

From within the shell, type passwd, which will change the password for the pi account.