public function __construct( $args = array() ) {
		foreach ( $args as $arg ) {
			$r = bp_parse_args(
				(array) $arg,
				array(
					'id'                => '',
					'position'          => 99,
					'component'         => '',
					'must_be_logged_in' => true,
					'block_self'        => false,
					'parent_element'    => false,
					'parent_attr'       => array(),
					'button_element'    => 'a',
					'button_attr'       => array(),
					'link_text'         => '',
				),
				'buttons_group_constructor'
			);

			// Just don't set the button if a param is missing
			if ( empty( $r['id'] ) || empty( $r['component'] ) || empty( $r['link_text'] ) ) {
				continue;
			}

			$r['id'] = sanitize_key( $r['id'] );

			// If the button already exist don't add it
			if ( isset( $this->group[ $r['id'] ] ) ) {
				continue;
			}

			/*
			 * If, in bp_nouveau_get_*_buttons(), we pass through a false value for 'parent_element'
			 * but we have attributtes for it in the array, let's default to setting a div.
			 *
			 * Otherwise, the original false value will be passed through to BP buttons.
			 * @todo: this needs review, probably trying to be too clever
			 */
			if ( ( ! empty( $r['parent_attr'] ) ) && false === $r['parent_element'] ) {
				$r['parent_element'] = 'div';
			}

			$this->group[ $r['id'] ] = $r;
		}
	}