Mechanisms to allow a user to flexibly display visual content on multiple display devices connected to a computer. Each of the multiple displays may be configured to display a portion of visual content from a computer desktop or from an external content source. Each portion of visual content to be outputted may first be enhanced, such as via magnification, before being displayed on one of the multiple display devices. The user may be provided with a first control that enables the user to adjust a portion of visual content displayed on a first display device independently of a portion of visual content displayed on a second display device. A second control may also be provided that enables the user to adjust the portion of visual content displayed on the second display device independently of the portion of visual content displayed on the first display device.