Answered NewsPublisher: getReqParam and parentid

<select name="pub_parent" id="parent">
[[!getResources?
	&parents=`2`
	&tpl=`NP Parent`
	&where=`{"isfolder:=":"1"}`
	&depth=`4`
	&sortby=`alias`
	&sortdir=`ASC`
	&limit=`0`
	&includeContent=`0`
	&resources=`-33`
]]
</select>

<option[[!getReqParam:is=`[[+id]]`:then=`selected="selected"`:else=``? &name=`parent`]] value="[[+id]]">[[+pagetitle]]</option>

&parentid=`[[!getReqParam? &name=`pub_parent`]]`

[[!NewPublisher?
   &parents=`[[getParents? &parent=`2`]]`
   &parentId=`12`
]]

/* getParents snippet */
$parentId = $modx->getOption('parent', $scriptProperties, '');
$parentObj = $modx->getObject('modResource', $parentId);

if ($parentObj) {
    $final = array();
    $final[] = $parentId;  /* Might not want this it includes
                              the parent id in the list */
    $docs = $parentObj->getMany('Children');

    foreach ($docs as $doc) {
        $docId = (int) $doc->get('id');
        if ($doc->get('isfolder') && ($docId != 33)) {
            $final[] = $doc->get('id');
        }
    }
}

return implode(",", $final);