US Patent 10353564 Graphical user interface with virtual extension areas

A device and a method for generating a graphical user interface on a display area involve displaying main content in an initial location on the display area. Supplemental content is assigned to a virtual extension area and include a fixed set of user interface elements. Responsive to a request to switch from the main content to the supplemental content, the main content is shifted away from the virtual extension area together with shifting the supplemental content from the virtual extension area onto the display area.