Simplify the Finder
You can give a user easy access to just a few items on the Mac by turning on Simple Finder in Parental Controls preferences. Instead of the many options available in the full Finder, Simple Finder shows only three folders: My Applications, Documents, and Shared. You can decide which apps and documents the user can see in the folders.
Before you can set up Simple Finder for a user, turn on parental controls. For more information, see Set up parental controls.
Set up Simple Finder
Choose Apple menu > System Preferences, then click Parental Controls.
Click the lock icon
to unlock it, then enter an administrator name and password (or if your Mac has a Touch Bar, use Touch ID).Select a user in the list of users, then click Other.
Select Use Simple Finder.
You may have to restart the Mac for the changes to take effect.
Change preferences for a user’s Simple Finder
In the Simple Finder, choose Finder > Run Full Finder, then enter your administrator name and password. In the full Finder you can make the changes you want in Parental Controls preferences.
When you’re done, choose Finder > Return to Simple Finder.