Prestashop: display "Choose language" inline in admin -

i wanna simplify life , display language flags inline next input fields in admin panel. example:

turn this:

into this:

i tried override

abstract class modulecore { public function displayflags() } 

but no effect.

then modify admin\themes\default\template\helpers\options\options.tpl to:

<div class="displayed_flag"> {foreach $languages $language}     <img src="../img/l/{$language.id_lang}.jpg"         class="pointer"         alt="{$language.name}"         title="{$language.name}"         onclick="changelanguage('{$key}', '{if isset($custom_key)}{$custom_key}{else}{$key}{/if}', {$language.id_lang}, '{$language.iso_code}');" /> {/foreach} </div> 

but still nothing.

of course deleted class_index.php, clear cache etc...

i using prestashop 1.5.5 , default theme.

you're searching displayflags function inside /js/admin.js file.

here works on installation changes:

function displayflags(languages, defaultlanguageid, employee_cookie) {     if ($('.translatable'))     {         $('.translatable').each(function() {             if (!$(this).find('.displayed_flag').length > 0) {                 $.each(languages, function(key, language) {                     if (language['id_lang'] == defaultlanguageid)                     {                         defaultlanguage = language;                         return false;                     }                 });                 var displayflags = $('<div></div>')                     .addclass('displayed_flag');                 $.each(languages, function(key, language) {                     var img = $('<img>')                         .addclass('pointer')                         .css('margin', '0 2px')                         .attr('src', '../img/l/' + language['id_lang'] + '.jpg')                         .attr('alt', language['name'])                         .click(function() {                             changeformlanguage(language['id_lang'], language['iso_code'], employee_cookie);                         });                     displayflags.append(img);                 });                 if ($(this).find('p:last-child').hasclass('clear'))                     $(this).find('p:last-child').before(displayflags);                 else                     $(this).append(displayflags);             }         });     } }