Check all, better visibility and import/export

A check all button would be great. Also if you could highlight the elements that changed in the monitors list(in addition to the little number on the button of the widget), because sometimes the pop-up that shows the last changed items comes when we're not in front of the computer, and if we have a lot of monitors it's very difficult then to know what elements changed... Finally an import/export function would be very practical to use the widget on many computers for example.