How to Trigger a Mac Shortcut With a Keyboard Combo

Assign a keyboard shortcut to a Mac Shortcut: open the Details pane, enable Use as Quick Action, then click Add Keyboard Shortcut and press your keys.

1. Open the shortcut in the editor. Launch the Shortcuts app and find the shortcut among the tiles. Double-click it to open the editor window. The keyboard assignment lives inside this window, not in the main library view and not anywhere in System Settings.
2. Open the Details pane. Click the info button at the top right of the editor window. A pane opens on the right carrying the shortcut name, its icon, and every option that controls where the shortcut is allowed to appear on this Mac.
3. Enable Use as Quick Action first. Tick Use as Quick Action in the Details pane, then tick the Services Menu box that appears beneath it. This registers the shortcut with the system services layer. Until it is registered there, a key combination has nothing to trigger.
4. Set the key combination. Click the Add Keyboard Shortcut field in the Details pane, then physically press the combination you want. The field records the keys as you hold them. Click elsewhere to commit it. To clear it later, click the field and press Delete.
5. Manage the assignment in System Settings. Open System Settings > Keyboard, click Keyboard Shortcuts, and select Services in the left column. Your shortcut appears in that list with its combination. You can change it, clear it, or untick it entirely from here without opening the Shortcuts app.
6. Check the combination is not already taken. Before you settle on a combination, press it in a normal app and watch what happens. Application menu shortcuts win over services, so a combination an app already claims will never reach your shortcut. Scan the other categories in the Keyboard Shortcuts list as well.