BigCommerce Product Catalog Select Quanties of 6

We sell products in quantities of multiples of 6, but we need to exclude some products in a way that allows a dropdown starting from 1 in ascending order using the Minimum purchase quantity on admin side.

If the Minimum Purchase in your product catalog is set to 6, then the select option appears; otherwise, it shows the native input.

BigCommerce Theme File: templates/components/products/add-to-cart.html

<div class="qtyAndPrice">
        <div class="form-field form-field--increments">
            <label class="form-label form-label--alternate"
                   for="qty[]">{{lang 'products.quantity'}}</label>
                   {{#if product.min_purchase_quantity '!=' '6' }}
                
                   <div class="form-increment" data-quantity-change>
                    <span class="button button--icon" data-action="dec">
                        <span class="is-srOnly">{{lang 'products.quantity_decrease' name=product.title}}</span>
                        <span>&minus;</span>
                    </span>
                    <input class="form-input form-input--incrementTotal"
                           id="qty[]"
                           name="qty[]"
                           type="tel"
                           value="{{#if product.min_purchase_quantity}}{{product.min_purchase_quantity}}{{else}}1{{/if}}"
                           data-quantity-min="{{product.min_purchase_quantity}}"
                           data-quantity-max="{{product.max_purchase_quantity}}"
                           min="1"
                           pattern="[0-9]*"
                           aria-live="polite">
                    
                    <span class="button button--icon" data-action="inc">
                        <span class="is-srOnly">{{lang 'products.quantity_increase' name=product.title}}</span>
                        <span>&plus;</span>
                    </span>
                    {{else}}
                    <select class="form-select" id="qty[]" name="qty[]" aria-live="polite">
                        {{#for 1 100}}
                            <option value="{{multiply $index 6}}">{{multiply $index 6}}</option>
                        {{/for}}
                    </select>
                    {{/if}}
                </div>
        </div>