Set default Library in selector (drupal 8)

I'd like to set the default library = "Interactive Video" and hide the "Content Type" selector or hub.

In a custom module, I can get my JS to run once the library has been chosen from the Select list:

function h5pmods_h5p_scripts_alter(&$scripts, & $libraries, $mode) {
  if ($mode == 'editor') {
    $styles[] = (object) array(
      'path' => drupal_get_path('module', 'h5pmods') . '/h5p-editor-overrides.js',
      'version' => '?ver=1',
    );
  }
}

However, I cannot find a way to run my JS when the Selector/Hub is loaded (only after the Editor is loaded).

Something like this would be helpful:

function h5pmods_h5p_scripts_alter(&$scripts, & $libraries, $mode) {
  if ($mode == 'library-select') {
    $styles[] = (object) array(
      'path' => drupal_get_path('module', 'h5pmods') . '/my-script.js',
      'version' => '?ver=1',
    );
  }
}

Ultimately, my goal is to:

• Only allow Interactive Videos to be created.
• Set Interactive Video as the default option for the Editor.
• Continue to allow other Content Types (like text and multichoice) to be created within the interactive video.

Many thanks for your help!