Описание фильтров

app/addons/my_changes/func.php (надо создать если нету)

<?php
function fn_my_changes_get_filters_products_count_before_select_filters(&$sf_fields, $sf_join, $condition, $sf_sorting, $params)
{
    $sf_fields .= ",?:product_features_descriptions.full_description";
}

app/addons/my_changes/init.php (надо создать если нету)

<?php
fn_register_hooks(
    'get_filters_products_count_before_select_filters'
);

design/themes/responsive/templates/addons/my_changes/hooks/blocks/product_filters_variants.override.tpl (надо создать)

<!--override with my_changes-->
{assign var="filter_uid" value="`$block.block_id`_`$filter.filter_id`"}
{assign var="cookie_name_show_filter" value="content_`$filter_uid`"}
{if $filter.display == "N"}
    {* default behaviour of cm-combination *}
    {assign var="collapse" value=true}
    {if $smarty.cookies.$cookie_name_show_filter}
        {assign var="collapse" value=false}
    {/if}
{else}
    {* reverse behaviour of cm-combination *}
    {assign var="collapse" value=false}
    {if $smarty.cookies.$cookie_name_show_filter}
        {assign var="collapse" value=true}
    {/if}
{/if}

{$reset_url = ""}
{if $filter.selected_variants || $filter.selected_range}
    {$reset_url = $filter_base_url}
    {$fh = $smarty.request.features_hash|fn_delete_filter_from_hash:$filter.filter_id}
    {if $fh}
        {$reset_url = $filter_base_url|fn_link_attach:"features_hash=$fh"}
    {/if}
{/if}

    <div class="ty-product-filters__block">
        <div id="sw_content_{$filter_uid}" class="ty-product-filters__switch cm-combination-filter_{$filter_uid}{if !$collapse} open{/if} cm-save-state {if $filter.display == "Y"}cm-ss-reverse{/if}">
            <span class="ty-product-filters__title">{$filter.filter}{if $filter.selected_variants} ({$filter.selected_variants|sizeof}){/if}{if $reset_url}<a class="cm-ajax cm-ajax-full-render cm-history" href="{$reset_url|fn_url}" data-ca-event="ce.filtersinit" data-ca-target-id="{$ajax_div_ids}" data-ca-scroll=".ty-mainbox-title"><i class="ty-icon-cancel-circle"></i></a>{/if}</span>
            {if $filter.full_description}<span class="cm-tooltip" title="{$filter.full_description}"><i class="ty-icon-help-circle"></i></span>{/if}
            <i class="ty-product-filters__switch-down ty-icon-down-open"></i>
            <i class="ty-product-filters__switch-right ty-icon-up-open"></i>
        </div>
        {hook name="blocks:product_filters_variants_element"}
        {if $filter.slider}
            {if $filter.feature_type == "ProductFeatures::DATE"|enum}
                {include file="blocks/product_filters/components/product_filter_datepicker.tpl" filter_uid=$filter_uid filter=$filter}
            {else}
                {include file="blocks/product_filters/components/product_filter_slider.tpl" filter_uid=$filter_uid filter=$filter}
            {/if}
        {else}
            {include file="blocks/product_filters/components/product_filter_variants.tpl" filter_uid=$filter_uid filter=$filter collapse=$collapse}
        {/if}
        {/hook}
    </div>

Шаблон с 493, на 410 может отличатся, так что осторожно с оверрайдом, сначала проверьте.
А если не хочется оверрайд делать, то вот эта строка и отвечает за вывод

{if $filter.full_description}<span class="cm-tooltip" title="{$filter.full_description}"><i class="ty-icon-help-circle"></i></span>{/if}
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