This tutorial explains how to share your screen during a live session in Google Chrome. For the Firefox tutorial, click here.
Enable Screensharing
In the top right corner of the Live Session page, you will find a button to enable screen sharing. Click on it.
A pop-up will now open. Click on the screen that you want to share here (if you only have a single screen, just click on the preview of your screen there).
Now you can click on the blue "Share" button. Your screen sharing is now activated!