How to add buttons for BBPress only?

Hello,
I am using this code to display the TinyMCE editor on BBPress.

function bbp_enable_visual_editor( $args = array() ) {
    $args['tinymce'] = true;
    $args['teeny'] = false;
    return $args;
}
add_filter( 'bbp_after_get_the_content_parse_args', 'bbp_enable_visual_editor' );

Is there a way to specify certain buttons to appear regardless of what they have set in user settings?

Also, what does
$args['teeny'] = false;
do if the value is set to true?

Thanks.

https://wordpress.org/plugins/tinymce-advanced/