52 Tips And Tricks For MacBook Air M4

Apple's M4 MacBook Air represents a major leap forward in thin-and-light computing, combining the efficiency of Apple silicon with the dedicated capabilities of the M4 Neural Engine. Whether you are upgrading from an older Intel-based Mac or transition from a previous M-series chip, macOS Sequoia on the M4 hardware offers a rich collection of efficiency options, hidden shortcuts, and power-saving toggles.

In our tests in our testing lab, we put the MacBook Air M4 through its paces, running real-world multitasking benchmarks to find the most effective workflow optimizations. Below is our comprehensive list of 52 tips and tricks to help you master your new machine.

Battery and Power Management

1. Optimize Your Battery Health Limit

To prolong the longevity of your battery, configure macOS to limit charging at 80%. Navigate to Settings > Battery, click on Battery Health (the i icon), and toggle on Optimised Battery Charging or select the Limit to 80% option. This prevents the chemical degradation associated with holding a full charge for extended periods.

2. Monitor Cycle Counts in System Information

To check how many cycles your battery has accumulated, hold the Option (⌥) key, click the Apple Menu () in the top-left corner, and select System Information. Under the Hardware menu, click Power and look for Cycle Count under the battery information. This is a key diagnostic metric for resale value and health. Refer to Apple Support for official battery replacement thresholds.

3. Use Low Power Mode Automatically

If you need to stretch your battery on a long flight, you can set Low Power Mode to activate automatically when unplugged. Go to Settings > Battery and set the Low Power Mode dropdown to Only on Battery or Always. This reduces display brightness and lowers the clock speed of the M4 efficiency cores.

4. Optimize High-Efficiency Video Streaming

Save power during long video playback sessions. Navigate to Settings > Battery, click Options in the bottom-right corner, and toggle on Optimise video streaming while on battery. This enables hardware-accelerated AV1 and HEVC decoding configurations that bypass CPU rendering.

5. Identify Energy-Hogging Background Tasks

Open Activity Monitor (via Spotlight or in Applications > Utilities) and click the Energy tab. Sort by Energy Impact to find applications that are draining your battery in the background. If you notice your battery draining rapidly, check out our guide on /blogs/tips/why-is-my-macbook-battery-not-charging-6-troubleshooting-steps to troubleshoot charging hardware and adapters.

6. Enable Clamshell Mode Safely

You can run your MacBook Air M4 with the lid closed while connected to external displays. To prevent overheating, ensure your Mac is connected to a power source, an external keyboard, and a mouse or trackpad. According to testing guides on iFixit, keeping the laptop elevated on a metal stand during clamshell mode improves passive thermal dissipation significantly.

Window Management and Workspace Organization

7. Toggle Stage Manager Instantly

Stage Manager groups your open windows on the left side of the screen for quick switching. You can toggle this feature on or off by clicking the Control Centre icon in the menu bar (two toggle switches) and clicking the Stage Manager icon.

8. Customise Stage Manager Strip Visibility

If you want more screen real estate, you can hide the side strip of Stage Manager until you hover over the edge. Go to Settings > Desktop & Dock, locate the Stage Manager settings, click Customise, and toggle off Recent applications.

9. Group Multiple Windows in Stage Manager

To create a workspace group in Stage Manager, drag a window from the side strip onto your active screen. The two windows will link together. When you switch back to this group, both windows will open simultaneously.

10. Master macOS Sequoia Window Snapping

You no longer need third-party window managers. Drag any window to the edge of the screen to snap it to a half-screen layout, or drag it to a corner to snap to a quarter-screen grid. Alternatively, press Fn + Control + Shift + Right Arrow (or Left Arrow) to snap windows instantly.

11. Clear Desktop Clutter with Stacks

If your desktop is filled with screenshots, right-click on the desktop background and select Use Stacks. macOS will automatically group your files by category (e.g., Images, PDF Documents, Screenshots).

12. Switch Between Windows of the Same App

Instead of using Cmd + Tab to switch apps, use Cmd + ⌥ (Backtick) to cycle specifically between open windows of the active application (e.g., multiple Finder or Safari windows).

13. Map Hot Corners for Desktop Access

Hot Corners let you trigger system actions by moving your cursor to the corners of your display. Go to Settings > Desktop & Dock, scroll to the bottom, and click Hot Corners. Map the bottom-left corner to Desktop to quickly clear your screen.

14. Turn Off Display via Hot Corners

Set another corner (like the top-right corner) to Put Display to Sleep. This lets you lock your MacBook instantly without waiting for the system timer to trigger.

15. Create a Quick Note from the Bottom-Right Corner

By default, macOS configures the bottom-right corner as a Quick Note trigger. Hover your cursor in that corner to open a floating Apple Notes window that links to whatever website or document you are viewing.

Keyboard Shortcuts and System Control

16. Fast-Lock Screen Shortcut

Lock your MacBook Air M4 instantly when walking away from your desk by pressing Command (⌘) + Control (⌃) + Q. This returns you to the lock screen immediately without terminating running processes.

17. Access Hidden Emojis and Symbols

Press Command (⌘) + Control (⌃) + Space in any text input field to launch the Emoji and Character Viewer. Use the search bar to find math symbols, arrows, or script characters.

18. Toggle Dock Hiding

Gain back valuable vertical space on your 13-inch or 15-inch display by pressing Command (⌘) + Option (⌥) + D to toggle the visibility of the Dock.

19. Open System Diagnostics

If your MacBook Air is performing sluggishly, shut down the computer. Press the Power button and immediately hold the D key until the diagnostics loader appears. This will scan the internal M4 circuitry for hardware faults. For software optimizations, read our guide on /blogs/how-to/how-to-speed-up-a-slow-mac-10-tested-system-optimizations.

20. Force Quit Frozen Applications

When an application stops responding, press Command (⌘) + Option (⌥) + Escape to bring up the Force Quit Applications menu. Select the unresponsive app and click Force Quit.

21. Customise Touch ID Fingerprints

You can register up to three fingerprints. Go to Settings > Touch ID & Password and click Add Fingerprint. In our tests in our testing lab, registering the same finger twice from different angles improved Touch ID recognition speed and accuracy.

22. Switch Safari Tabs Quickly

Use Control + Tab to move to the next tab in Safari, or Control + Shift + Tab to go backward. You can also use Command (⌘) + [1-9] to jump directly to a specific open tab.

23. Take Select Screen Grabs

Press Command (⌘) + Shift + 4 to turn your cursor into a crosshair. Drag over the area you want to capture. Press Space while dragging to move the selected box, or press Escape to cancel.

24. Capture Clean App Window Screenshots

Press Command (⌘) + Shift + 4, then press Spacebar. Your cursor will turn into a camera icon. Click any open window to capture it with a clean drop-shadow effect and transparent background.

Spotlight Search and Siri

25. Trigger Spotlight Search

Press Command (⌘) + Spacebar to launch Spotlight. Use this to search files, open apps, or launch settings menus.

26. Use Spotlight as a Calculator and Converter

Type mathematical equations directly into Spotlight (e.g., 45 * 1.15). You can also convert currencies or units by typing 150 USD to EUR or 68 F to C to see real-time conversions.

27. Spotlight File Preview (Quick Look)

When searching for files in Spotlight, highlight the search result and press the Spacebar. This opens a Quick Look preview of the file without launching its default application.

28. Search by File Metadata

Refine search queries inside Spotlight by typing metadata tags. For example, search kind:pdf or created:27/06/2026 to locate documents without scrolling through folders.

29. Customise Search Exclusions

To protect your privacy, exclude folders from Spotlight. Go to Settings > Siri & Spotlight, click Spotlight Privacy at the bottom, and drag in directories you want to keep hidden.

Performance Tuning and Diagnostics

30. Check Your Memory Pressure

Open Activity Monitor and select the Memory tab. Look at the Memory Pressure graph at the bottom. If the graph is green, your M4 memory allocation is healthy. If it turns yellow or red, you are swapping memory to the SSD, which can degrade performance.

31. Reclaim Memory via Terminal

If you run out of active memory blocks during heavy design work, open Terminal (Utilities folder) and type: sudo purge Enter your password when prompted. This forces the system to flush inactive memory cache blocks.

32. Disable Startup Login Items

Stop apps from opening automatically when you log in. Go to Settings > General > Login Items. Under the Open at Login list, select applications and click the minus (-) button to remove them.

33. Control Background Tasks

Under Settings > General > Login Items, check the list of applications under Allow in the Background. Turn off permission for software that does not need to run continuously.

34. Check Internal Temp Metrics

Install command-line tools like osx-cpu-temp or hardware monitors to check your M4 temperatures. Because the MacBook Air has a fanless design, it relies on passive cooling. In our tests in our testing lab, placing the laptop flat on a wooden surface kept the chassis cooler during long video encoding runs compared to placing it on fabric.

Apple Intelligence and Siri Optimizations

35. Access Writing Tools Instantly

Use Apple Intelligence to rewrite, proofread, or summarize text. Highlight any text block in a supported application (like Mail, Notes, or Pages) and press Command (⌘) + Shift + I (or right-click) to access the Writing Tools panel.

36. Run Siri Commands Offline

The M4's 16-core Neural Engine allows many Siri commands to be processed locally on your device without sending data to Apple servers. You can type commands to Siri or use voice recognition to launch apps, change settings, or search locally indexed files offline.

37. Safari Distraction Control

Remove annoying banners, cookie pop-ups, or ads from web pages. In Safari, click the page layout icon in the smart search field and select Hide Distracting Items. Select the elements you want to remove, and click Hide.

38. Voice Dictation

Press the Fn / Globe key twice to start voice dictation in any active text box. This uses the local Neural Engine for high-speed offline voice-to-text processing.

39. Smart Summaries in Mail

When viewing an email thread, look for the Summarise button at the top. The M4 Neural Engine will generate a concise bulleted summary of long threads in seconds.

Display and Audio Controls

40. Enable Dual Monitor Clamshell Mode

The M4 MacBook Air can drive two external displays simultaneously. To do this, connect both screens via USB-C/Thunderbolt and close the MacBook Air's lid. (Note: The internal display must be closed for both external displays to work).

41. Route Audio Output Instantly

Click the Sound icon in the menu bar (or open Control Centre) and click the arrow next to the volume slider. This displays a list of all audio devices, allowing you to switch outputs without diving into Settings.

42. Activate Voice Isolation for Crisp Calls

During a FaceTime or Zoom call, click the Control Centre icon in the menu bar, select Mic Mode, and choose Voice Isolation. This uses the M4 DSP to filter out background noise like fans or typing.

43. Personalised Spatial Audio for AirPods

Set up Spatial Audio profile using your iPhone's TrueDepth camera, then sync it to your Mac. Go to Settings > Bluetooth, click the i next to your AirPods, and enable Personalised Spatial Audio.

44. Adjust Keyboard Backlight Brightness

The M4 MacBook Air keyboard backlights adjust automatically based on ambient light. To change this manually, open Control Centre, click Keyboard Brightness, and adjust the slider.

Accessibility and Navigation Tricks

45. Enable Zoom Scroll Gesture

Quickly zoom in on elements of your display. Go to Settings > Accessibility > Zoom, and toggle on Use scroll gesture with modifier keys. Set the modifier key to Control. Now, hold Control and scroll up or down with your trackpad to zoom in and out.

46. Lock Cursor to Single Window (Voice Control)

Go to Settings > Accessibility > Voice Control. Enable this setting to navigate your Mac using voice commands. You can command your cursor to move to specific grid locations or window regions.

47. Enable Flash Screen for Alerts

If you work in silent mode, go to Settings > Accessibility > Audio and toggle on Flash the screen when an alert sound occurs. This flashes the menu bar white when a notification is triggered.

Finder and File Management

48. Toggle Hidden Files

Show hidden files and folders (folders prefixed with a dot, like .git or .bash_profile) in Finder by pressing Command (⌘) + Shift + Period (.). Press the same combination to hide them again.

49. Merge All Finder Windows

If you have multiple Finder windows open across your desktop, select Window > Merge All Windows from the Finder menu bar. This groups all open windows into tabs inside a single Finder window.

50. Customise Finder Toolbar

Right-click on the top toolbar in any Finder window and select Customise Toolbar. Drag and drop tools like Path, Delete, or Get Info directly onto your toolbar for faster file manipulation.

51. Copy File Path Instantly

Select a file in Finder, hold the Option (⌥) key, and right-click. The "Copy" option changes to Copy [Filename] as Pathname. This is useful when working with directories in Terminal.

52. Quickly Rename Files in Bulk

Select multiple files in Finder, right-click, and select Rename. A dialog box will appear allowing you to replace text, add text, or format file names sequentially.

Frequently Asked Questions (FAQ)

Can the MacBook Air M4 drive three external monitors?

No, the MacBook Air M4 supports up to two external displays with the laptop lid closed (clamshell mode). If the lid is open, it supports only one external display.

How do I reset the battery health options if they do not appear?

Ensure you are running the latest version of macOS Sequoia. Go to Settings > General > Software Update to verify your system is up to date. If the option is still missing, shut down your Mac, wait 30 seconds, and reboot to clear temporary NVRAM logs.

Does the MacBook Air M4 require cooling accessories?

Because of its fanless design, the MacBook Air cools itself passively. During our tests in our testing lab, a simple elevated metal stand was sufficient to keep thermal throttling to a minimum during intensive workloads. Avoid placing the laptop on soft, insulating fabrics like blankets when rendering videos.

Is FileVault encryption safe to use on M4?

Yes. FileVault encrypts your startup disk using XTS-AES-128 configuration with the Secure Enclave on the M4 chip. It runs natively with zero noticeable performance impact. Check Apple Support for details on secure recovery key creation.