1. A graphical user interface for manipulating entities by a manipulation operation, the graphical user interface comprising a selectable interface entity upon which the manipulation operations are operable; a first interface entity other than the selectable interface entity; and a second interface entity other than the selectable interface entity and the first interface entity, wherein upon commencement of a manipulation operation on the selectable interface entity, at least one of the first interface entity and the second interface entity is accentuated to indicate a relationship thereof with respect to the selectable interface entity and the commenced manipulation operation.