pdoPage

<div class="sort">
	<span>Показать: </span>
	<select name="limit" id="limit">
		<option value="12">12</option>
                <option value="24">24</option>
	</select>
</div>

{'!pdoPage' | snippet : [
				        'elements' => 'msProducts',
                        'tpl' => '@FILE chunks/product.tpl', 
                        'parents' => $_modx->resource.id,
                        'limit' => 3,
                        'depth' => 4,
                        'includeTVs' => 1,
                        'includeContent' => 1,
                        'processTVs' => 1,
                        'tvPrefix' => '',
                        'sortby' => 'menuindex',
                        'sortdir' => 'asc',
                    ]}