View file Hustbee/WHMCS/standard_cart/sidebar-categories-collapsed.tpl

<div class="categories-collapsed visible-xs visible-sm clearfix">

    <div class="pull-left form-inline">
        <form method="get" action="{$smarty.server.PHP_SELF}">
            <select name="gid" onchange="submit()" class="form-control">
                <optgroup label="Product Categories">
                    {foreach key=num item=productgroup from=$productgroups}
                        <option value="{$productgroup.gid}"{if $gid eq $productgroup.gid} selected="selected"{/if}>{$productgroup.name}</option>
                    {/foreach}
                </optgroup>
                <optgroup label="Actions">
                    {if $loggedin}
                        <option value="addons"{if $gid eq "addons"} selected{/if}>{$LANG.cartproductaddons}</option>
                        {if $renewalsenabled}
                            <option value="renewals"{if $gid eq "renewals"} selected{/if}>{$LANG.domainrenewals}</option>
                        {/if}
                    {/if}
                    {if $registerdomainenabled}
                        <option value="registerdomain"{if $domain eq "register"} selected{/if}>{$LANG.navregisterdomain}</option>
                    {/if}
                    {if $transferdomainenabled}
                        <option value="transferdomain"{if $domain eq "transfer"} selected{/if}>{$LANG.transferinadomain}</option>
                    {/if}
                    <option value="viewcart"{if $action eq "view"} selected{/if}>{$LANG.viewcart}</option>
                </optgroup>
            </select>
        </form>
    </div>

    {if !$loggedin && $currencies}
        <div class="pull-right form-inline">
            <form method="post" action="cart.php{if $action}?a={$action}{elseif $gid}?gid={$gid}{/if}">
                <select name="currency" onchange="submit()" class="form-control">
                    <option value="">{$LANG.choosecurrency}</option>
                    {foreach from=$currencies item=listcurr}
                        <option value="{$listcurr.id}"{if $listcurr.id == $currency.id} selected{/if}>{$listcurr.code}</option>
                    {/foreach}
                </select>
            </form>
        </div>
    {/if}

</div>