User control for dynamically adjusting the scope of a data set

A user control for dynamically adjusting the scope of a set of content, information, and/or data and a user interface (UI) for representing the same are provided. A scope control tool represented, e.g., by a selectable icon, may be accessible from all screens in the UI and may be applied to both traditional list-type views of content or data, as well as to control screens, tools, or application screens. A method for applying scope to a set of data and representing the data on a UI in a manner which provides a readily visible indication of the amount of data in the data set and which provides for the prominent presentation of that data which may be most useful to the user is also provided.