CIVIEvent - List of participants
Pierre94, Welcome to CiviCRM stack exchange. To add custom listing is not straight forward if you not a developer. 

To add custom listing you will need to 

1. Add listing option

Navigate to CiviCRM >> Administer >> System Settings >> Option Groups. Find for 'Participant Listing' and click edit option besides it. Add new option with label as listing name and and Description as class name to invoke when viewing this option eg CRM_Event_Page_ParticipantListing_NameStatusAndDate.


Implement the listing using code in your extension


Copy paste any php file from here into your extension directory(use the path same as defined in your listing option). Similarly do for tpl from here. Modify the php and tpl file as per your needs.

Thanks

Pradeep