diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1983a2b..7b061d1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,10 @@ xxx.xx.xx
 - Never fix breaking comments or complexe public url
 - [ ] Add public page of the list of know urls and in/visible status
 - [ ] Add passworded links
+- fix permissions
+- fix js load
+- add user pref on table cols
+- add user pref on filters (dc 2.20)
 
 2021.09.16
 - remove deprecated external service
diff --git a/_admin.php b/_admin.php
index 20eff0b..e34a096 100644
--- a/_admin.php
+++ b/_admin.php
@@ -25,11 +25,14 @@ $_menu['Plugins']->addItem(
     $core->adminurl->get('admin.plugin.kUtRL'),
     dcPage::getPF('kUtRL/icon.png'),
     preg_match('/' . preg_quote($core->adminurl->get('admin.plugin.kUtRL')) . '(&.*)?$/', $_SERVER['REQUEST_URI']),
-    $core->auth->check('admin', $core->blog->id));
+    $core->auth->check('admin', $core->blog->id)
+);
 
 # Admin behaviors
 if ($core->blog->settings->kUtRL->kutrl_active) {
     $core->addBehavior('adminDashboardFavorites', ['adminKutrl', 'antispamDashboardFavorites']);
+    $core->addBehavior('adminColumnsLists', ['adminKutrl', 'adminColumnsLists']);
+    $core->addBehavior('adminSortsLists', ['adminKutrl', 'adminSortsLists']);
     $core->addBehavior('adminPostHeaders', ['adminKutrl', 'adminPostHeaders']);
     $core->addBehavior('adminPostFormItems', ['adminKutrl', 'adminPostFormItems']);
     $core->addBehavior('adminAfterPostUpdate', ['adminKutrl', 'adminAfterPostUpdate']); // update existing short url
@@ -49,23 +52,56 @@ $core->addBehavior('importFull', ['backupKutrl', 'importFull']);
 # Admin behaviors class
 class adminKutrl
 {
+    public static function sortbyCombo()
+    {
+        return [
+            __('Date')      => 'kut_dt',
+            __('Short URL') => 'kut_hash',
+            __('Long URL')  => 'kut_url',
+            __('Service')   => 'kut_service'
+        ];
+    }
+
     public static function antispamDashboardFavorites(dcCore $core, $favs)
     {
         $favs->register(
             'kUtRL', 
             [
-                'title' => __('Links shortener'),
-                'url' => $core->adminurl->get('admin.plugin.kUtRL'),
-                'small-icon' => dcPage::getPF('kUtRL/icon.png'),
-                'large-icon' => dcPage::getPF('kUtRL/icon-b.png'),
+                'title'       => __('Links shortener'),
+                'url'         => $core->adminurl->get('admin.plugin.kUtRL'),
+                'small-icon'  => dcPage::getPF('kUtRL/icon.png'),
+                'large-icon'  => dcPage::getPF('kUtRL/icon-b.png'),
                 'permissions' => 'admin'
             ]
         );
     }
 
+    public static function adminColumnsLists(dcCore $core, $cols)
+    {
+        $cols['kUtRL'] = [
+            __('URL shortener'),
+            [
+                'kut_hash'    => [true, __('Hash')],
+                'kut_dt'      => [true, __('Date')],
+                'kut_service' => [true, __('Service')]
+            ]
+        ];
+    }
+
+    public static function adminSortsLists(dcCore $core, $sorts)
+    {
+        $sorts['kUtRL'] = [
+            __('URL shortener'),
+            self::sortbyCombo(),
+            'kut_dt',
+            'desc',
+            [__('Links per page'), 30]
+        ];
+    }
+
     public static function adminPostHeaders()
     {
-        return dcPage::jsLoad('index.php?pf=kUtRL/js/admin.js');
+        return dcPage::jsLoad(dcPage::getPF('kUtRL/js/posts.js'));
     }
 
     public static function adminPostFormItems($main_items, $sidebar_items, $post)
diff --git a/inc/lib.kutrl.lst.php b/inc/lib.kutrl.lst.php
index 9a4c714..eaf7c25 100644
--- a/inc/lib.kutrl.lst.php
+++ b/inc/lib.kutrl.lst.php
@@ -28,6 +28,20 @@ class kutrlLinkslist
         $this->html_next = __('next »');
     }
 
+    public function userColumns($type, $cols)
+    {
+        $cols_user = @$this->core->auth->user_prefs->interface->cols;
+        if (is_array($cols_user) || $cols_user instanceof ArrayObject) {
+            if (isset($cols_user[$type])) {
+                foreach ($cols_user[$type] as $cn => $cd) {
+                    if (!$cd && isset($cols[$cn])) {
+                        unset($cols[$cn]);
+                    }
+                }
+            }
+        }
+    }
+
     public function display($page, $nb_per_page, $enclose_block, $filter = false)
     {
         if ($this->rs->isEmpty()) {
@@ -38,59 +52,82 @@ class kutrlLinkslist
             }
         } else {
             $pager   = new dcPager($page, $this->rs_count, $nb_per_page, 10);
-            $entries = [];
+            $links = [];
             if (isset($_REQUEST['entries'])) {
                 foreach ($_REQUEST['entries'] as $v) {
-                    $entries[(integer) $v] = true;
+                    $links[(integer) $v] = true;
                 }
             }
 
-            $blocks = explode('%s', sprintf($enclose_block, 
-                '<div class="table-outer"><table>' .
-                ($filter ?
-                    '<caption>' . sprintf(__('List of %s links matching the filter.'), $this->rs_count) . '</caption>' :
-                    '<caption>' . sprintf(__('List of links (%s)'), $this->rs_count) . '</caption>'
-                ) .
-                '<tr>' . 
-                '<th colspan="2" class="first">' . __('Hash') . '</th>' .
-                '<th scope="col">' . __('Link') . '</th>' .
-                '<th scope="col">' . __('Date') . '</th>' .
-                '<th scope="col">' . __('Service') . '</th>' . 
-                '</tr>%s</table>%s</div>'
-            ));
+            $cols = [
+                    'kut_url'    => '<th colspan="2" class="first">' . __('Link') . '</th>',
+                    'kut_hash'     => '<th scope="col">' . __('Hash') . '</th>',
+                    'kut_dt'      => '<th scope="col">' . __('Date') . '</th>',
+                    'kut_service' => '<th scope="col">' . __('Service') . '</th>'
+            ];
+            $cols = new ArrayObject($cols);
+            $this->userColumns('kUtRL', $cols);
 
-            echo $pager->getLinks().$blocks[0];
+            $html_block =
+            '<div class="table-outer">' .
+            '<table>' .
+            '<caption>' . ($filter ? 
+                sprintf(__('List of %s links matching the filter.'), $this->rs_count) :
+                sprintf(__('List of links (%s)'), $this->rs_count)
+            ). '</caption>' .
+            '<thead>' .
+            '<tr>' . implode(iterator_to_array($cols)) . '</tr>' .
+            '</thead>' .
+            '<tbody>%s</tbody>' .
+            '</table>' .
+            '%s</div>';
+
+            if ($enclose_block) {
+                $html_block = sprintf($enclose_block, $html_block);
+            }
+            $blocks = explode('%s', $html_block);
+
+            echo $pager->getLinks() . $blocks[0];
 
             while ($this->rs->fetch()) {
-                $type = $this->rs->kut_type;
-                $hash = $this->rs->kut_hash;
-
-                if (null !== ($o = kutrl::quickService($type))) {
-                    $type = '<a href="' . $o->home . '" title="' . $o->name . '">' . $o->name . '</a>';
-                    $hash = '<a href="' . $o->url_base . $hash . '" title="' . $o->url_base . $hash . '">' . $hash . '</a>';
-                }
-
-                echo
-                '<tr class="line">' . 
-                '<td class="nowrap">' .
-                    form::checkbox(['entries[]'], $this->rs->kut_id, ['checked'  => isset($entries[$this->rs->kut_id])]) .
-                '</td>' .
-                '<td class="nowrap">' .
-                    $hash .
-                '</td>' .
-                '<td class="maximal" scope="row">' .
-                '<a href="' . $this->rs->kut_url . '">' . $this->rs->kut_url . '</a>' .
-                '</td>' .
-                '<td class="nowrap count">' .
-                    dt::dt2str(__('%Y-%m-%d %H:%M'), $this->rs->kut_dt, $this->core->auth->getInfo('user_tz')) .
-                '</td>' .
-                '<td class="nowrap">' .
-                    $type .
-                '</td>' .
-                '</tr>';
+                echo $this->linkLine(isset($links[$this->rs->kut_id]));
             }
 
-            echo $blocks[1].$blocks[2].$pager->getLinks();
+            echo $blocks[1] . $blocks[2] . $pager->getLinks();
         }
     }
+
+    private function linkLine($checked)
+    {
+        $type = $this->rs->kut_type;
+        $hash = $this->rs->kut_hash;
+
+        if (null !== ($o = kutrl::quickService($type))) {
+            $type = '<a href="' . $o->home . '" title="' . $o->name . '">' . $o->name . '</a>';
+            $hash = '<a href="' . $o->url_base . $hash . '" title="' . $o->url_base . $hash . '">' . $hash . '</a>';
+        }
+
+        $cols = [
+            'check' => '<td class="nowrap">' .
+                    form::checkbox(['entries[]'], $this->rs->kut_id, ['checked'  => isset($entries[$this->rs->kut_id])]) .
+                '</td>',
+            'kut_url' => '<td class="maximal" scope="row">' .
+                '<a href="' . $this->rs->kut_url . '">' . $this->rs->kut_url . '</a>' .
+                '</td>',
+            'kut_hash' => '<td class="nowrap">' .
+                    $hash .
+                '</td>',
+            'kut_dt' => '<td class="nowrap count">' .
+                    dt::dt2str(__('%Y-%m-%d %H:%M'), $this->rs->kut_dt, $this->core->auth->getInfo('user_tz')) .
+                '</td>',
+            'kut_service' => '<td class="nowrap">' . 
+                    $type . 
+                '</td>'
+        ];
+
+        $cols = new ArrayObject($cols);
+        $this->userColumns('kUtRL', $cols);
+
+        return '<tr class="line">' .  implode(iterator_to_array($cols)) . '</tr>' . "\n";
+    }
 }
\ No newline at end of file
diff --git a/index.php b/index.php
index e355fa9..ba6eaa2 100644
--- a/index.php
+++ b/index.php
@@ -190,20 +190,15 @@ if ($part == 'link') {
 if ($part == 'links') {
     $log = new kutrlLog($core);
 
-    $sortby_combo = [
-        __('Date') => 'kut_dt',
-        __('Long link') => 'kut_url',
-        __('Short link') => 'kut_hash'
-    ];
-    $order_combo = [
-        __('Descending') => 'desc',
-        __('Ascending') => 'asc'
-    ];
+    $sortby_combo = adminKutrl::sortbyCombo();
+    $order_combo = [__('Descending') => 'desc', __('Ascending') => 'asc'];
 
     $core->auth->user_prefs->addWorkspace('interface');
-    $default_sortby = 'kut_dt';
-    $default_order = $core->auth->user_prefs->interface->posts_order ?: 'desc';
-    $nb_per_page = $core->auth->user_prefs->interface->nb_posts_per_page ?: 30;
+    $sorts_user = @$core->auth->user_prefs->interface->sorts;
+    $default_sortby = $sorts_user['kUtRL'][0] ?? 'kut_dt';
+    $default_order  = $sorts_user['kUtRL'][1] ?? 'desc';
+    $nb_per_page    = !empty($sorts_user['kUtRL'][2]) ? $sorts_user['kUtRL'][2] : 30;
+
     $sortby = !empty($_GET['sortby']) ? $_GET['sortby'] : $default_sortby;
     $order = !empty($_GET['order']) ? $_GET['order'] : $default_order;
     $urlsrv = !empty($_GET['urlsrv']) ? $_GET['urlsrv'] : '';
@@ -277,16 +272,9 @@ echo
 
 if ($part == 'links') {
     echo 
-    '<script type="text/javascript">' . "\n" .
-    "//<![CDATA[\n" .
-    dcPage::jsVar(
-        'dotclear.filter_reset_url',
-        html::escapeJS($p_url . '&part=links')
-    ) . "\n" .
-    "\$(function(){\$('.checkboxes-helpers').each(function(){dotclear.checkboxesHelpers(this);});});\n" .
-    "//]]>\n" .
-    "</script>\n" .
-    dcPage::jsFilterControl($show_filters);
+    dcPage::jsVars(['dotclear.filter_reset_url' => $core->adminurl->get('admin.plugin.kUtRL', ['part' => 'links'])]) .
+    dcPage::jsFilterControl($show_filters) .
+    dcPage::jsLoad(dcPage::getPF('kUtRL/js/admin.js'));
 }
 
 echo 
@@ -498,7 +486,7 @@ if ($part == 'links') {
     dcPage::notices();
 
     echo '
-    <form action="' . $p_url . '&amp;part=links" method="get" id="filters-form">
+    <form action="' . $p_url . '" method="get" id="filters-form">
     <h3 class="out-of-screen-if-js">' . __('Show filters and display options') . '</h3>
     <div class="table">
     <div class="cell">
@@ -518,8 +506,9 @@ if ($part == 'links') {
     __('entries per page') . '</label></p>' .
 
     form::hidden('part', 'links') .
-    form::hidden('p', 'kUtRL') . '
-
+    form::hidden('p', 'kUtRL') .
+    form::hidden('filters-options-id', 'kUtRL') .
+    '<p class="hidden-if-no-js"><a href="#" id="filter-options-save">' . __('Save current options') . '</a></p>
     </div>
     </div>
 
@@ -530,21 +519,27 @@ if ($part == 'links') {
     $list_current->display(
         $page,
         $nb_per_page, 
-        '<form action="' . $p_url . '&amp;part=links" method="post" id="form-actions">
+        '<form action="' . $p_url . '&amp;part=links" method="post" id="form-entries">
 
         %s
 
         <div class="two-cols">
-        <p class="col checkboxes-helpers"></p>
+        <div class="col left">
+        <p class="checkboxes-helpers"></p>
+        </div>
         <p class="col right">
-        <input type="submit" value="' . __('Delete selected short links') . '" />' . 
-        form::hidden(['deletelinks'], 1) . 
-        form::hidden(['urlsrv'], $urlsrv) . 
-        form::hidden(['sortby'], $sortby) . 
-        form::hidden(['order'], $order) . 
-        form::hidden(['page'], $page) . 
-        form::hidden(['nb'], $nb_per_page) . 
-        form::hidden(['part'], 'links') . 
+        <input id="do-action" type="submit" value="' . __('Delete selected short links') . '" /></p>' .
+        $core->adminurl->getHiddenFormFields(
+            'admin.plugin.kUtRL',[
+                'deletelinks' =>  1,
+                'urlsrv' => $urlsrv,
+                'sortby' => $sortby,
+                'order' => $order,
+                'page' => $page,
+                'nb' => $nb_per_page,
+                'part' => 'links'
+            ]
+        ) . 
         $core->formNonce() . '
         </p>
         </div>
diff --git a/js/admin.js b/js/admin.js
index d39c02b..c8d7ac2 100644
--- a/js/admin.js
+++ b/js/admin.js
@@ -1,7 +1,7 @@
 $(function(){
-    /* toogle admin form sidebar */
-    $('#kUtRL h5').toggleWithLegend(
-        $('#kUtRL').children().not('h5'),
-        {cookie:'dcx_kUtRL_admin_form_sidebar',legend_click:true}
-    );
+  $('#form-entries .checkboxes-helpers').each(function () {
+    dotclear.checkboxesHelpers(this, undefined, '#form-entries td input[type=checkbox]', '#form-entries #do-action');
+  });
+  $('#form-entries td input[type=checkbox]').enableShiftClick();
+  dotclear.condSubmit('#form-entries td input[type=checkbox]', '#form-entries #do-action');
 });
\ No newline at end of file
diff --git a/js/posts.js b/js/posts.js
new file mode 100644
index 0000000..4576328
--- /dev/null
+++ b/js/posts.js
@@ -0,0 +1,7 @@
+$(function(){
+  /* toogle admin form sidebar */
+  $('#kUtRL h5').toggleWithLegend(
+  $('#kUtRL').children().not('h5'),
+    {cookie:'dcx_kUtRL_admin_form_sidebar',legend_click:true}
+  );
+});
\ No newline at end of file