Calendar

1: Support 2 types: Manual & Auto

Manual

Calendar: Manuall

Recurring

Repeats event by Daily

Repeats event by Weekly

Repeats event by Monthly

Repeats event by yearly

2: Customize template

You can customize template in child theme:

Copy file 
wp-content/plugins/eventlist/templates/vendor/__edit-event-calendar.php 
to
wp-content/themes/meup-child/eventlist/vendor/__edit-event-calendar.php
and edit code in that file