OptionalapproveReturns true if an element is allowed to receive focus. By default, all candidates are approved.
OptionalisIf true no scrolling will occur after element receives focus, otherwise the browser scrolls the document to bring
the newly-focused element into view.
OptionalsortSorts elements that are candidates to be focused. By default, elements are sorted in a document order.
Options of ordered focus movement methods from FocusControls.