Yes. This one.
Can I call the shortcode directly via php e.g. for my own template, theme or plugin?
Yes, you can create an instance of the “SC_Event_List” class which is located in the plugin folder under “includes/sc_event-list.php” and call the function show_html($atts).With $atts you can specify all the shortcode attributes you require. Another possibility would be to call the wordpress function “do_shortcode()”.