The Settings Template inherits settings from the Site, and a user initially shares the settings of the Settings Template in which the account was created. Inherited settings are marked by gray check boxes. You can override inherited settings by clearing or selecting the check box.
The check boxes toggle through three settings:
Inherited -
A gray check box 
means no changes have been made by the administrator
to the settings inherited from the Settings Template or Site. This is
a neutral indicator and simply means the setting is the same as the Settings
Template or Site for that option.
Overridden, allowed
- A black check mark 
indicates that the administrator has overridden
this inherited setting. A black check mark indicates that the setting
is enabled for the Settings Template or user even if it is disabled in
the Site or Settings Template.
Overridden, not allowed
- A blank check box 
means the administrator has overridden this
inherited option. This setting does not apply to the Settings Template
or user, even if it is enabled in the Site or Settings Template.
You can change a user’s Settings Template by dragging and dropping the user into a different level, or using the procedure in Moving a User to a Different Settings Template. The account's inherited settings change to reflect the settings of its new Settings Template; however, if a user account contains modified (overridden) settings and is moved to a new Settings Template, those modifications remain in effect at the new Settings Template.