Thank you Anon Ymous (nice nickname by the way:)

When it comes to your question. Event Calendar widget is the most complex one from all the widgets we provide with the plugin. I don’t see a simple way to achieve that, What you could try tough is to copy the Events_Maker_Calendar_Widget class, call the $events_maker object and modify the widget code according to your needs, with focus on display_calendar() method – this one is resposible for the calendar output (remember that to make it work, you’d need to add Ajax handling for to this too).