Hello jean-pascal perrein !

As you know the content like "Featured", "New", "Past"  etc (for Events App) works only with a public variant of visibility. How is possible to show all events in a list but with hidden items for not-allowed levels? In the Studio->Pages app, the necessary page you need to add a new "service" block with the "System" module and the following content:

array (

  'module' => 'system',

  'method' => 'get_results',

  'params' => 

  array (

    0 => 

    array (

      'object' => 'bx_events',

      'show_empty' => true,

      'cond' => 

      array (

        1 => 1,

      ),

    ),

  ),

  'class' => 'TemplSearchExtendedServices',

In this case, you will have the list of events like in the next picture. But the users with the proper levels will see all.