Application Wizard lets you define keyboard shortcuts to quickly perform frequent tasks by pressing keys on your keyboard. You can for instance use keyboard shortcuts to quit all running applications, or switch back to the previous application, or turn single application mode on and off.
Open Application Wizard.
On macOS 13 or later, choose Application Wizard > Settings. On macOS 12 or 11, choose Application Wizard > Preferences. Then click Keyboard Shortcuts.
Choose a task and select its checkbox in the Active column to enable the keyboard shortcut.
Double-click the empty space in the Shortcut column and press the key combination you want to use.
Key combinations including a function key, arrow key, or keypad key do not require modifier keys (Shift, Control, Option, or Command). All the other key combinations must contain at least one modifier key. Keypad keys appear in square brackets [ ] so that you can distinguish them.
Double-click the key combination in the Shortcut column and press the Delete key.