In Vaadin 8 using calendar add-on unable to set monthly view as default

I’m using [calendar add-on]
( in vaadin 8 project, but I’m unable to set default calendar view to monthly view.
Now the scenario is after opening calendar it shows weekly view first as default view and then by clicking on displayed date monthly view is displayed whereas I wanted to set calendar view such as after opening calendar instead of displaying in weekly view, the calendar should be opened in monthly view as the default view.