diff --git a/like_mybb_bT4CK-theme.xml b/like_mybb_bT4CK-theme.xml
index 8096ebe20c97e619d95f6191ae800014c5a03d22..1d2c6bdef67ab4682c7cd70f5e241a907b3d2570 100644
--- a/like_mybb_bT4CK-theme.xml
+++ b/like_mybb_bT4CK-theme.xml
@@ -8,9 +8,38 @@
 		<tablespace><![CDATA[5]]></tablespace>
 		<borderwidth><![CDATA[0]]></borderwidth>
 		<color><![CDATA[]]></color>
-		<disporder><![CDATA[a:15:{s:10:"global.css";i:1;s:8:"css3.css";i:2;s:12:"headerck.css";i:3;s:16:"star_ratings.css";i:4;s:9:"modcp.css";i:4;s:10:"usercp.css";i:4;s:14:"showthread.css";i:5;s:17:"thread_status.css";i:6;s:8:"site.css";i:9;s:15:"calendar_ck.css";i:11;s:18:"hack_line_code.css";i:12;s:16:"refurb_theme.css";i:13;s:12:"searchck.css";i:14;s:11:"ckblink.css";i:15;s:17:"Lien_effects1.css";i:16;}]]></disporder>
+		<disporder><![CDATA[a:16:{s:10:"global.css";i:1;s:8:"css3.css";i:2;s:12:"headerck.css";i:3;s:16:"star_ratings.css";i:4;s:9:"modcp.css";i:4;s:10:"usercp.css";i:4;s:14:"showthread.css";i:5;s:17:"thread_status.css";i:6;s:8:"site.css";i:9;s:15:"calendar_ck.css";i:11;s:18:"hack_line_code.css";i:12;s:16:"refurb_theme.css";i:13;s:12:"searchck.css";i:14;s:11:"ckblink.css";i:15;s:17:"Lien_effects1.css";i:16;s:16:"Tread_prefix.css";i:17;}]]></disporder>
 	</properties>
 	<stylesheets>
+		<stylesheet name="Tread_prefix.css" version="1829"><![CDATA[/*(Wrapping element)*/
+.ets_tfp {
+	position: relative;
+	top: 10px;
+	margin-left: 10px;
+}
+
+/*(Caption element)*/
+.ets_tfp .caption {
+}
+
+/*(Reset link element)*/
+.ets_tfp .reset {
+}
+
+/*(Count of threads)*/
+.ets_tfp .num {
+}
+
+/*(Any active link element (Mind: select options auto-marked as selected instead))*/
+.ets_tfp .active {
+}
+
+/*(Any prefix link)*/
+.ets_tfp a {
+}
+
+]]>
+		</stylesheet>
 		<stylesheet name="searchck.css" version="1829"><![CDATA[/*source : https://codepen.io/jkantner/pen/eYmvvqQ 
 et https://freefrontend.com/css-search-boxes/ */
 
@@ -5801,7 +5830,7 @@ This is free software, support us and we'll support you. -->
 		<template name="forumdisplay_inlinemoderation_custom" version="120"><![CDATA[<optgroup label="{$lang->custom_mod_tools}">{$customthreadtools}</optgroup>]]></template>
 		<template name="forumdisplay_inlinemoderation_custom_tool" version="120"><![CDATA[<option value="{$tool['tid']}">{$tool['name']}</option>]]></template>
 		<template name="forumdisplay_inlinemoderation_delete" version="1800"><![CDATA[<option value="multideletethreads">{$lang->delete_threads}</option>]]></template>
-		<template name="forumdisplay_inlinemoderation_manage" version="1800"><![CDATA[<option value="multimovethreads">{$lang->move_threads}</option>]]></template>
+		<template name="forumdisplay_inlinemoderation_manage" version="1800"><![CDATA[<option value="multimovethreads">{$lang->move_threads}</option>{$applyprefix}]]></template>
 		<template name="forumdisplay_inlinemoderation_openclose" version="1800"><![CDATA[<option value="multiclosethreads">{$lang->close_threads}</option>
 <option value="multiopenthreads">{$lang->open_threads}</option>]]></template>
 		<template name="forumdisplay_inlinemoderation_restore" version="1800"><![CDATA[<option value="multirestorethreads">{$lang->restore_threads}</option>]]></template>
@@ -5926,7 +5955,8 @@ This is free software, support us and we'll support you. -->
 	</td>
 	{$modbit}
 </tr>]]></template>
-		<template name="forumdisplay_threadlist" version="1820"><![CDATA[<div class="float_left">
+		<template name="forumdisplay_threadlist" version="1820"><![CDATA[{$ets_filter_prefix}
+<div class="float_left">
 	{$multipage}
 </div>
 <div class="float_right">
@@ -6430,8 +6460,25 @@ $(".forumjump").on('change', function() {
 <ul class="nav navbar-nav ">
 	<li class="nav-divider"></li>
 	<a class="navbar-brand" href="{$mybb->settings['bburl']}/calendar.php"  title="Calendrier"><i class="far fa-calendar-alt"></i> Calendrier</a>
+	<!-- // to hide
+<li class="nav-divider"></li>
+<a class="navbar-brand" href="{$mybb->settings['bburl']}/todolist.php"  title="A faire"><i class="fas fa-list-ul"></i> ToDo</a>
+-->
 	<li class="nav-divider"></li>
-	<a class="navbar-brand" href="{$mybb->settings['bburl']}/todolist.php"  title="A faire"><i class="fas fa-list-ul"></i> ToDo</a>
+	<!--deb Level2 lnk member only-->
+	<div class="nav-item dropdown">
+		<a class="navbar-brand dropdown-toggle collapsed" href="#ckm1-2" data-toggle="collapse" aria-haspopup="true" aria-expanded="false"  title="Prefix"><i class="fas fa-list-ul"></i> Prefix</a>
+		<div class="dropdown-menu collapsed collapse" id="ckm1-2" style="max-height: 350px; overflow-x: auto;"> 
+			<form class="form-group mr-0" style="margin-bottom:0.1em;" action="search.php">
+				<button class="btn btn-primary btn-block btn-sm" style="padding: 3px;position: sticky;top: 0px;z-index: 2;background: #11a3b8;" type="submit" title="Cliquez sur ce boutton pour lancer la recherche">Recherche Prefix dans les forums</button>
+				<input type="hidden" name="showresults" value="threads" />
+				<input type="hidden" name="sortby" value="lastpost" />
+				<input type="hidden" name="action" value="do_search" />
+				{$stickerck_run[7]}
+			</form>
+		</div>
+	</div>
+	<!--end deb Level2 lnk member only-->
 	<li class="nav-divider"></li>
 	<a class="navbar-brand" href="{$mybb->settings['bburl']}/search.php"  title="Recherche avancée" ><i class="fas fa-search-plus"></i> Recherche +</a>	
 	<li class="nav-divider"></li>
@@ -6440,11 +6487,11 @@ $(".forumjump").on('change', function() {
 <!--fin Level1 lnk-->
 <!--deb search -->
 <ul class="nav navbar-nav navbar-right">
-	<div class="collapse navbar-collapse" id="MNBS4">
+	<div class="collapse navbar-collapse" id="MNBS4b">
 		<ul class="nav navbar-nav navbar-right">
 			<div class="searchck">
 				<form action="{$mybb->settings['bburl']}/search.php" class="search-bar">
-					<input type="search" name="keywords" placeholder="   Recherche" pattern=".*\S.*" required>
+					<input type="search" name="keywords" placeholder="Recherche" pattern=".*\S.*" required>
 					<button class="search-btn" type="submit">
 						<span>Recherche</span>
 					</button>
@@ -12777,7 +12824,7 @@ document.write('<br /><span class="smalltext"><a href="javascript:void(0)" oncli
 <option class="option_mirage" value="split">{$lang->split_thread}</option>
 <option class="option_mirage" value="merge">{$lang->merge_threads}</option>
 <option class="option_mirage" value="removeredirects">{$lang->remove_redirects}</option>
-<option class="option_mirage" value="removesubscriptions">{$lang->remove_subscriptions}</option>]]></template>
+<option class="option_mirage" value="removesubscriptions">{$lang->remove_subscriptions}</option>{$applyprefix}]]></template>
 		<template name="showthread_moderationoptions_openclose" version="1818"><![CDATA[<option class="option_mirage" value="openclosethread">{$lang->open_close_thread}</option>]]></template>
 		<template name="showthread_moderationoptions_restore" version="1804"><![CDATA[<option value="restorethread">{$lang->restore_thread}</option>]]></template>
 		<template name="showthread_moderationoptions_softdelete" version="1804"><![CDATA[<option value="softdeletethread">{$lang->soft_delete_thread}</option>]]></template>