...
Toggle Full Screen - Toggles between full screen and windowed mode.
Sharing Controls - Allows the presenter to share their whiteboard to the Vivi display, pause and resume their screen share, and stop sharing.
On Screen Timer - If sharing, the ability to display a floating timer will be available. Refer to 3.12 for more information.
In the middle of the screen, on the left and right sides, can be found:
...