Advanced settings for users have been moved out of Users & Groups, but are still accessible in Directory Utility for those who are careful not to do anything hazardous.
Users & Groups
Accessing information about you as a user and a great deal more, using the Advanced Options dialog for user accounts, and Directory Utility.
Four popular and straightforward ways to set your Mac to run an app or other software when it starts up. Includes AppleScript code.
If anyone recommends that you change the Advanced Options for a user, please read this first. It could save you a lot of pain and grief.
When you want software to run automatically each time you Mac starts up, there are several ways of doing that. Here’s your choice.
How to set a managed account up for a child, or another vulnerable user, using Parental Controls.
When should you create a new user, and how should you delete them?
The Eclectic Light Company 