Wow!
Anyone who teaches with a visualiser and PPT
Insert -> Cameo then select your camera shape
When visualiser is attached, click on cameo shape, then in the toolbar, camera format -> camera preview then select visualiser
Even more fun on a Mac as you can select an iPhone!
For anyone who teaches using a PowerPoint but also wants to use their visualiser - the cameo function on PowerPoint will change your life. Embed the visualier directly into PPT slide so no more faffing around going in and out of PowerPoint