Sep 25, 2026 2:39 PM in response to muriel77
Hi,
You can switch the mouse clicks for left-handed use in macOS such as macOS Golden Gate by changing the secondary click option to the left side in your system settings.
Steps to Switch Mouse Clicks
- Open System Settings by clicking the Apple icon in the top-left corner of your screen.
- Click Mouse in the sidebar menu.
- Locate the drop-down menu for Secondary click.
- Choose Click left side to swap the primary and secondary functions for your left hand.
- Close the window to save your new configuration.
Sep 25, 2026 3:07 PM in response to muriel77
System Settings > Mouse (near the bottom) > Point & Click tab, set the Secondary Click option to Click Left Side.

More info: Right-click on Mac - Apple Support