Multiple Users under El-Capitan On a MacBook Air, running OS X El Capitan, can two different Users login to their own User Account while accessing their own individual and different iCloud Accounts?
Yes! Simply create a second user:

Add a user


In Users &amp; Groups preferences, click Add (+) below the list of users.
Choose the type of user you want to create from the New Account
pop-up menu.
Type a full name for the new user. ...
Enter a password for the user, then enter it again to verify. ...
Click Create User.


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