add_filter('fw:ext:backups-demo:demos', 'child_the_core_filter_fw_ext_backups_demos', 999);
function child_the_core_filter_fw_ext_backups_demos($demos_child) {
  $demos_array = array(
     'the-lavish-unyson'   => array(
        'title'        => esc_html__( 'The Lavish', 'the-core' ),
        'screenshot'   => 'http://updates.themefuse.com/demos/screenshots/the-lavish.png',
        'preview_link' => 'https://demo.themefuse.com/responsive-wordpress-hotel-theme/',
     ),
     'beach-resort-unyson' => array(
        'title'        => esc_html__( 'Beach Resort', 'the-core' ),
        'screenshot'   => 'http://updates.themefuse.com/demos/screenshots/beach-resort.png',
        'preview_link' => 'https://demo.themefuse.com/hotel-booking-wordpress-theme/',
     ),
     'alpine-lodge-unyson' => array(
        'title'        => esc_html__( 'Alpine Lodge', 'the-core' ),
        'screenshot'   => 'http://updates.themefuse.com/demos/screenshots/alpine-lodge.png',
        'preview_link' => 'https://demo.themefuse.com/accommodation-wordpress-theme/',
     ),
  );

  foreach ( $demos_array as $id => $data ) {
     $demo = new FW_Ext_Backups_Demo( $id, 'piecemeal', array(
        'url'     => 'http://updates.themefuse.com/demos/',
        'file_id' => $id,
     ) );
     $demo->set_title( $data['title'] );
     $demo->set_screenshot( $data['screenshot'] );
     $demo->set_preview_link( $data['preview_link'] );

     $demos[ $demo->get_id() ] = $demo;

     unset( $demo );
  }

  return $demos;
}