You can also set options for controlling your screen using the Computer Settings button.To add a user, tap the Plus button and select the user there – only existing Mac users will be listed.You’ll need to define who can share the screen: All users or only these users.Open System Preferences > Sharing on your Mac.(Refer to the note if it’s not clear or your configuration differs.) This is explained in more detail in this tech support note, but here’s a very brief version. You just need to set the system up first. It is already possible to use screen sharing to view and control another Mac remotely. What can we replace these services with? Use Mac’s built-in Screen Sharing tools
