defaults write widget-com.junecloud.widget.deliverystatus loglevel -int 1; killall Dock;
defaults write widget-com.junecloud.widget.deliverystatus disabletooltips 1; killall Dock;
defaults delete widget-com.junecloud.widget.deliverystatus disabletooltips; killall Dock;
defaults write widget-com.mikepiontek.widget.deliverystatus historydays -integer 90
(where 90 is the number of days you want history items to be saved)