Thread:Help talk:Eventcalendar format/Does the jQuery eventcalendar plugin come already installed on Semantic Mediawiki/Mediawiki or do we have to install it separately?

The first sentence of the Help page is unclear: Just as the subject line says, does the jQuery eventcalendar plugin come already installed on Semantic Mediawiki/Mediawiki or do we have to install it separately?
 * The result format eventcalendar the jquery.fullcalendar plugin to generate an event calendar with different views ('month', 'basicweek', 'basicday', 'agendaweek', 'agendaday' ) to choose from.