//280ShowExternal
// show data from other applications that can be listed as tasks?
if (count($_show_external)) \{
    $_prefs['show_external'] = array(
        'value' => 'a:0:\{\}',
        'locked' => false,
        'shared' => false,
        'type' => 'multienum',
        'enum' => $_show_external,
        'desc' => _("Show data from any of these other applications in your task list?"),
    );
\}

