Show specific entries only

Yes. Check the bottom of the faq

How can I stop some entries from showing up in the list?

To filter out entries from the list depending on a value you can use the filter_entries filter. For example; if you want to show only approved entries you could use this code in your functions.php:

add_filter('filter_entries','show_only_approved' );
function show_only_approved($entries) {
    foreach ($entries as $entryKey => &$entryValue) {
        if ($entryValue["xxx"] == NULL) {
            unset($entries[$entryKey]);
        }
    }
    return $entries;
}