{block name=xgx_cronus_sidebar_bare append}
<li {if $selectedPlugin eq 'xgx_usp_boxes'}class="active"{/if}>
    <button class="btn btn-default btn-block" type="button" data-plugin="xgx_usp_boxes">{txt key=TEXT_XGX_USP_BOXES}</button>
</li>
{/block}