Event list widget

I like page builder very much, but I have a problem with the Event List widget (https://wordpress.org/plugins/event-list/)

This widget has serveral settings, but they don’t work within page builder:
When I put the widget in the sidebar it works fine.
As a workaround I edited the orignal widget.php, and hardcoded the options:

from widget.php:
$shortcode .= ' show_details='.$instance['show_details'];
changed to:
$shortcode .= ' show_details=false';