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Shows a list of other users that the person viewing this tile can see. The settings for this tile allows you to choose which role(s) the person viewing the tile must have in order to display subsets of users.
Profile
This is displayed on dashboards by default and shows Shows all of the general profile information for that user: full name, user fields, relations (current, previous, future), roles. If the user has permissions to edit their profile then they can do this by clicking the edit button from this tile.