adm_themes/simple/templates/modules/groups-roles.cards.tpl
{$category = $cards[0].category}
<h2>{$cards[0].category}</h2>
<div class="row admidio-margin-bottom">
{foreach $cards as $card}
{if $category != $card.category}
</div>
<h2>{$card.category}</h2>
<div class="row admidio-margin-bottom">
{$category = $card.category}
{/if}
{include file='sys-template-parts/card.information.button.tpl'}
{/foreach}
</div>