A method, comprising: at a computing system comprising one or more processors, memory, a first housing that includes a primary display, and a second housing at least partially containing a physical keyboard and a touch-sensitive secondary display that is distinct from the primary display: displaying, on the primary display, a first user interface for an application executed by the computing system; displaying a second user interface on the touch-sensitive secondary display, the second user interface comprising a first set of one or more user interface elements corresponding to the application, wherein the first set of one or more user interface elements corresponds to a first portion of the first user interface for the application; detecting a swipe gesture on the touch-sensitive secondary display; in accordance with a determination that the swipe gesture was performed in a first direction, displaying a second set of one or more user interface elements corresponding to the application on the touch-sensitive secondary display, wherein at least one user interface element in the second set of one or more user interface elements is distinct from the first set of one or more user interface elements, and wherein the second set of one or more user interface elements also corresponds to the first portion of the first user interface for the application; and, in accordance with a determination that the swipe gesture was performed in a second direction substantially perpendicular to the first direction, displaying on the touch-sensitive secondary display a third set of one or more user interface elements corresponding to the application and ceasing to display on the touch-sensitive secondary display the second set of one or more user interface elements, wherein the third set of one or more user interface elements is distinct from the second set of one or more user interface elements, and wherein the third set of one or more user interface elements corresponds to a second portion of the first user interface for the application that is distinct from the first portion of the first user interface for the application. displaying, on the primary display, a first user interface for an application executed by the computing system; displaying a second user interface on the touch-sensitive secondary display, the second user interface comprising a first set of one or more user interface elements corresponding to the application, wherein the first set of one or more user interface elements corresponds to a first portion of the first user interface for the application; detecting a swipe gesture on the touch-sensitive secondary display; in accordance with a determination that the swipe gesture was performed in a first direction, displaying a second set of one or more user interface elements corresponding to the application on the touch-sensitive secondary display, wherein at least one user interface element in the second set of one or more user interface elements is distinct from the first set of one or more user interface elements, and wherein the second set of one or more user interface elements also corresponds to the first portion of the first user interface for the application; and, in accordance with a determination that the swipe gesture was performed in a second direction substantially perpendicular to the first direction, displaying on the touch-sensitive secondary display a third set of one or more user interface elements corresponding to the application and ceasing to display on the touch-sensitive secondary display the second set of one or more user interface elements, wherein the third set of one or more user interface elements is distinct from the second set of one or more user interface elements, and wherein the third set of one or more user interface elements corresponds to a second portion of the first user interface for the application that is distinct from the first portion of the first user interface for the application.