Be aware that all permissions applied directly to a User account will override any restrictions imposed based on Group permissions. The header of the page contains this warning:

User permission warning

The Advanced User Permissions form contains 3 sections:

Left Column contains the user name, an option to save, and a search for Zones.
The Header Fields contains the Zones where this user has permissions.
Permissions contains the four (4) categories of permissions available for users.

Complete each of these sections according to the directions in the links provided, then save your changes.