17. Repeater

Add repeater field with all fields available (ex.: text, checkbox, select and even another repeater)

'field_t' => array(
   'type' => 'repeater',
   'label' => esc_html__( 'Repeater fields', 'my-domain' ),
   'fields' => array(
      'field_1' => array(
         'type' => 'text',
         'label' => esc_html__( 'Text 1', 'my-domain' ),
      ),
      'field_2' => array(
         'type' => 'select',
         'label' => esc_html__( 'Select 2', 'my-domain' ),
         'options' => array(
            'text' => esc_html__('Text', 'my-domain'),
            'video' => esc_html__('Video', 'my-domain'),
            'slide' => esc_html__('Slide', 'my-domain'),
         ),
      ),
   )
),