These settings change how content within iCM is organised.
List Page Length
The number of items that will appear per page when lists are displayed within iCM. For example, the number of items that appear per page in the security log, or the number of tasks that appear per page in the Scheduled Tasks section. This setting does not affect the number of items displayed in your most recently modified items or other lists on the homepage.
iCM Users Category Level
Choose how iCM Users are displayed in the iCM Groups/Users tree.
If you don't choose a category, all users will be displayed in a single list. "Initial character" groups the users into alphabetical directories, "Initial 2 characters" will nest the directories by the first two characters etc.
Website Users Category Level
Choose how Site Users are displayed in the Site Groups/Users tree.
If you don't choose a category, all users will displayed in a single list. "Initial character" groups the users into alphabetical directories, "Initial 2 characters" will nest the directories by the first two characters etc.