Mac User Guide
- Welcome
- What’s new in macOS Sequoia
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- Get started with Apple Intelligence
- Use Writing Tools
- Use Apple Intelligence in Mail
- Use Apple Intelligence in Messages
- Use Apple Intelligence with Siri
- Get webpage summaries
- Summarize an audio recording
- Use Apple Intelligence in Photos
- Summarize notifications and reduce interruptions
- Apple Intelligence and privacy
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- Intro to Continuity
- Use AirDrop to send items to nearby devices
- Hand off tasks between devices
- Control your iPhone from your Mac
- Copy and paste between devices
- Stream video and audio with AirPlay
- Make and receive calls and text messages on your Mac
- Use your iPhone internet connection with your Mac
- Share your Wi-Fi password with another device
- Use iPhone as a webcam
- Insert sketches, photos, and scans from iPhone or iPad
- Unlock your Mac with Apple Watch
- Use your iPad as a second display
- Use one keyboard and mouse to control Mac and iPad
- Sync music, books, and more between devices
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- Control what you share
- Set up your Mac to be secure
- Allow apps to see the location of your Mac
- Use Private Browsing
- Keep your data safe
- Understand passwords
- Change weak or compromised passwords
- Keep your Apple Account secure
- Use Mail Privacy Protection
- Use Sign in with Apple for apps and websites
- Find a missing device
- Resources for your Mac
- Resources for your Apple devices
- Copyright
Extend or mirror your Mac desktop across multiple displays
When you connect one or more external displays to your Mac, you can choose what appears on each display.
You can use video mirroring to show your entire desktop on each display.
You can extend your desktop across two or more displays, and choose which display shows the Finder and application menu.
If more than two displays are connected, you can specify that some use video mirroring and others use an extended desktop.
On your Mac, choose Apple menu
in the sidebar. (You may need to scroll down.)Click the name of your display, click the “Use as” pop-up menu, then choose an option.
Note: If you’re using a Mac laptop or iMac, you must have an external display connected to your Mac to see these options. If you’re using a device with no built-in display, such as a Mac mini or Mac Studio, you must have more than one display connected to see these options.
To set up some displays for mirroring and others for an extended desktop, start by setting up all displays as an extended desktop. Then, press and hold the Option key, and drag one display icon onto another display icon to mirror those two displays.
