bp_custom_pages_do_settings_sections( $page )

function bp_custom_pages_do_settings_sections( $page ) {
	global $wp_settings_sections, $wp_settings_fields;

	if ( ! isset( $wp_settings_sections[$page] ) )
		return;

	foreach ( (array) $wp_settings_sections[$page] as $section ) {
		echo "<div class='bp-admin-card section-{$section['id']}'>";
		if ( $section['title'] )
			echo "<h2>{$section['title']}</h2>\n";

		if ( $section['callback'] )
			call_user_func( $section['callback'], $section );

		if ( ! isset( $wp_settings_fields ) || !isset( $wp_settings_fields[$page] ) || !isset( $wp_settings_fields[$page][$section['id']] ) )
			continue;
		echo '<table class="form-table">';
		bp_custom_pages_do_settings_fields( $page, $section['id'] );
		echo '</table></div>';
	}
}