Вывод категорий каталога 2-го уровня

день добрый, подскажите, тут где-то можно задать вывод не всех категорий каталога а только 2-го уровня ? 

{function brand_plugin_category_tree categories=[]}
	{foreach $categories as $category}
		<li class="brand-plugin-catalog-brand-categories__item">
			<a class="brand-plugin-catalog-brand-categories__link" href="{$category.frontend_url}">
				{$category.name}
			</a>
			{if count($category.children)}
				<ul class="brand-plugin-catalog-brand-categories__list">
					{call brand_plugin_category_tree categories=$category.children}
				</ul>
			{/if}
		</li>
	{/foreach}
{/function}

{$pages_tabs}
{strip}
	<div class="brand-plugin-catalog__header">
		<div class="brand-plugin-catalog-header__brand">
			{$brand_image_url = $brand->getImageUrl('150x0')}
			{if !$brand_image_url}
				{$brand_image_url = $wa_app_static_url|cat:'img/image-dummy.png'}
			{/if}

			<div class="brand-plugin-catalog-header-brand__description">
				{$description}
			</div>
		</div>

		<div class="brand-plugin-catalog-header__categories">
			{$column_categories = shopBrandViewHelper::groupCategoriesPlainTreeByColumns($brand_categories_plain_tree, 2)}

			<div class="brand-plugin-catalog-brand-categories">
				{foreach $column_categories as $column => $categories}
					{$tree = shopBrandViewHelper::toTree($categories)}
					<div class="brand-plugin-catalog-brand-categories__column">
						<ul class="brand-plugin-catalog-brand-categories__list brand-plugin-catalog-brand-categories__list_depth_0">
							{call brand_plugin_category_tree categories=$tree}
						</ul>
					</div>
				{/foreach}
			</div>
		</div>
	</div>
{/strip}