User Groups are designed for a number of users within any organisation with a common connection e.g. part of the same office or working on the same project.
Every user can belong to one and only one user group. Each user group is also a member of the organisation group, so adding a user to a group does not exclude them from having access to the organisation folder. A user does not have to belong to a group.
When a group is set up for the first time, a folder for the group is created. This means that the users within any group can save all their maps, colour schemes and print layouts in one folder. Only users within the group will be able to gain access to this folder ensuring that if they are working on a confidential project the other users within the organisation cannot access the information, except for the Admin User.
See also
To add or remove users in a group