1. A user interface comprising: a display; a representation area to display a graphical representation; a focal control disposed within the representation area and fixed at a predetermined position within the representation area; a gesture detection functionality to: detect a location of an input from a user relative to the focal control, wherein the focal control is visible prior to the detection of the input from the user and after the detection of the input from the user; detect an input of the user that is into the focal control, and in response to detecting the input of the user that is into the focal control, manipulate the graphical representation in a first manner; and detect an input of the user that is out of the focal control, and in response to detecting the input of the user that is out of the focal control, manipulate the graphical representation in a second manner that is different from the first manner; and a manipulation functionality to, responsive to detecting the location of the input from the user, manipulate the graphical representation based, at least in part, on the location of the input from the user relative to the focal control, wherein: the graphical representation comprises multiple regions that each display respective content of a hierarchy; the input of the user into the focal control originates from a first region of the multiple regions; and the manipulation of the graphical representation in the first manner comprises causing display of one or more children in the hierarchy of the content in the first region, the one or more children being displayed in respective regions of the multiple regions.