One way to draw students’ attention to paying attention in class is to use the screen lock feature. For instance during a full-screen demonstration, all input devices on the students’ computers are locked. The computers can then no longer be used by the students. In addition, a lock symbol is displayed to prevent distractions caused by open applications.
Press the Lock button to lock all displayed computers:
If you want to unlock the screens, simply press the button again or click the Monitoring button to switch back to monitoring mode globally.