From the toolbar at the bottom of the screen, choose the content sharing options:
screen/application and image
Select the screen share icon and you will be able to choose “Your Entire Screen” – sharing your entire screen (a three screen version is shown on the left below) or “Application Window” – sharing your application.
If you want to share an image file, choose the image sharing option. You’ll be prompted to add files, then begin your presentation.
For Chrome users, if this is the first time you have shared your screen, follow the on-screen prompts to enable screen sharing.
The first time that you use Auralink via Chrome to share your screen from a conference hosted at a particular domain, a confirmation window will appear:
Select OK to confirm that you want to share your screen.