This function allows transmission of content other than what's displayed on your PC. For example, you can display text documents on your PC screen while projecting a slide from your Microsoft Power Point presentation. It lets you view your notes while giving a presentation. It also displays thumbnail images of the slides, so you can immediately jump to any slide you want. * With Wireless Manager ME 3.0, you can use the projector screen as a secondary monitor for the PC. In this setup, Microsoft  Power Point must be set to "Show Presenter View."