Sometimes you may need to hide the system settings in macOS to prevent unwanted changes (I’m looking at you, my wife!). This is how:
1) Go to the Apple menu and select System Preferences.
2) Under the View menu, click Customize.
3) Check marks appear on all items / panes in System Preferences.
4) Uncheck a box and click Done.
If you later decide, you want to “remove hide” “a route, just reverse the process.