You can set the user preferences in the Preferences page for any of the administrative management utilities. Each user preference has a default value that is implemented until an alternative value is set. In directory hierarchies, the preference values are inherited from higher level objects. However, the preference values set at the user object level override any values inherited from other objects in the directory.
You can restrict users from setting or modifying the preferences.
Launch the Administrative Management utility (iManager, SLManager, or MMC snap-ins).
Click Preference. The Preference properties table is displayed.
Locate the setting you want to change and then, in the Value column, select the appropriate value.
Some of the value settings are text field entries where you have to provide the value.
Click OK. The selected value is saved and the Administrative Management utility closes.