Extend your Mac's display onto a smaller, portable screen, by using your iPad as a secondary monitor and the Duet Display application for OS X and iOS.

Let's say you want a second screen for your Mac to extend or mirror your current display. If you're running macOS Catalina or higher and own an iPad, you can do it through a feature called Sidecar.

Learn how to stop an iPhone screen fading to black at inopportune moments by extending the screen lockout time.

If you have a dual-monitor configuration, you can set up a screensaver to move across both monitors, or duplicate on both.

Alex gives you a short tutorial on how you can use the app to extend the screen of your phone, tablet, or PC to the TV using the console.

With the Sidecar feature in macOS, your iPad can be a second display for your Mac. Here's how to use your Apple tablet as an external monitor ...

With macOS Catalina's Sidecar feature, your iPad can be a second display for your Mac. You'll need a relatively recent Mac, but here's how to set it up and use Sidecar.