Set up Hot Corners
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An often missed feature in macOS is the Hot Corners feature that turns each of the four corners of your screen into a designated action, allowing you to quickly access certain functions built into the system, such as Mission Control, Notification Center, the Screen Saver, QuickNote, and more.
Setting up Hot Corners is very easy.
• Go to the Apple menu and choose "System Settings..."
• Click Desktop & Dock in the side column
• Click the Hot Corners... button at the bottom of the menu
• In the dialog that appears, click the chevrons to open the dropdown menu corresponding to the screen corner that you want to use as a Hot Corner