snippet of striped down CMB2 WYSIWYG meta field options
<?php
//* Do NOT include the opening php tag shown above. Copy the code shown below.
// WYSIWYG Minimal Field
//* https://github.com/WebDevStudios/CMB2/wiki/Field-Types#wysiwyg
$cmb2->add_field( array(
'name' => 'Field Name',
'desc' => 'Add a description(optional)',
'id' => $prefix . 'wysiwyg-text',
'type' => 'wysiwyg',
'options' => array(
'wpautop' => true,
'media_buttons' => false,
'teeny' => true,
'textarea_rows' => get_option('default_post_edit_rows', 8),
'quicktags' => false,
),
) );