Presenter mode for screen sharing
Double-click on anyone's video feed to put them into presenter mode. This will place the video you chose as the main focus. If you share your screen as a Leader, your video will appear in focus, allowing others to see your shared screen in the middle of their screen.
To stop presenting, or stop others from presenting, simply click the Stop Presenting icon on the presented video.
Note that presenter mode only appears for students if Leading mode is enabled or if they double click on the shared screen!