diff --git a/module/programplan/config/form.php b/module/programplan/config/form.php
index 2dcc9a971a..c0d030b9c8 100644
--- a/module/programplan/config/form.php
+++ b/module/programplan/config/form.php
@@ -38,9 +38,9 @@ $config->programplan->form->edit['milestone'] = array('required' => false, 'type
 $config->programplan->form->edit['output']    = array('required' => false, 'type' => 'array',  'default' => array(), 'filter' => 'join');
 
 $config->programplan->form->ajaxCustom = array();
-$config->programplan->form->ajaxCustom['zooming']     = array('required' => false, 'type' => 'string');
-$config->programplan->form->ajaxCustom['stageCustom'] = array('required' => false, 'type' => 'array', 'filter' => 'join');
-$config->programplan->form->ajaxCustom['ganttFields'] = array('required' => false, 'type' => 'array', 'filter' => 'join');
+$config->programplan->form->ajaxCustom['zooming']     = array('required' => false, 'type' => 'string', 'default' => '');
+$config->programplan->form->ajaxCustom['stageCustom'] = array('required' => false, 'type' => 'array', 'filter' => 'join', 'default' => 'array()');
+$config->programplan->form->ajaxCustom['ganttFields'] = array('required' => false, 'type' => 'array', 'filter' => 'join', 'default' => 'array()');
 
 $config->programplan->form->updateDateByGantt['id']        = array('required' => false, 'type' => 'int',    'default' => 0);
 $config->programplan->form->updateDateByGantt['startDate'] = array('required' => false, 'type' => 'string', 'default' => null);
diff --git a/module/programplan/css/ajaxcustom.ui.css b/module/programplan/css/ajaxcustom.ui.css
new file mode 100644
index 0000000000..4170e77bb2
--- /dev/null
+++ b/module/programplan/css/ajaxcustom.ui.css
@@ -0,0 +1 @@
+#ajaxCustomForm .customField .checkbox-primary {width: 20%;}
diff --git a/module/programplan/lang/de.php b/module/programplan/lang/de.php
index 0c56777c5b..9ace4da824 100644
--- a/module/programplan/lang/de.php
+++ b/module/programplan/lang/de.php
@@ -96,9 +96,8 @@ $lang->programplan->confirmDelete     = 'Do you want to delete the current plan?
 $lang->programplan->confirmChangeAttr = 'The type of the sub-stage will be adjusted to "%s" synchronously according to the type of the parent stage after modification. Do you want to save?';
 $lang->programplan->workloadTips      = 'The proportion of the sub stage workload is divided by 100%.';
 
-$lang->programplan->stageCustom = new stdClass();
-$lang->programplan->stageCustom->date = 'Show Date';
-$lang->programplan->stageCustom->task = 'Show Task';
+$lang->programplan->stageCustom['date'] = 'Show Date';
+$lang->programplan->stageCustom['task'] = 'Show Task';
 
 $lang->programplan->ganttCustom['PM']           = 'Manager';
 $lang->programplan->ganttCustom['deadline']     = 'Deadline';
diff --git a/module/programplan/lang/en.php b/module/programplan/lang/en.php
index 4debf890ae..a16d7fb52c 100644
--- a/module/programplan/lang/en.php
+++ b/module/programplan/lang/en.php
@@ -96,9 +96,8 @@ $lang->programplan->confirmDelete     = 'Do you want to delete the current plan?
 $lang->programplan->confirmChangeAttr = 'The type of the sub-stage will be adjusted to "%s" synchronously according to the type of the parent stage after modification. Do you want to save?';
 $lang->programplan->workloadTips      = 'The workload of the sub stage is divided by 100%.';
 
-$lang->programplan->stageCustom = new stdClass();
-$lang->programplan->stageCustom->date = 'Show Date';
-$lang->programplan->stageCustom->task = 'Show Task';
+$lang->programplan->stageCustom['date'] = 'Show Date';
+$lang->programplan->stageCustom['task'] = 'Show Task';
 
 $lang->programplan->ganttCustom['PM']           = 'Manager';
 $lang->programplan->ganttCustom['deadline']     = 'Deadline';
diff --git a/module/programplan/lang/fr.php b/module/programplan/lang/fr.php
index 0c56777c5b..9ace4da824 100644
--- a/module/programplan/lang/fr.php
+++ b/module/programplan/lang/fr.php
@@ -96,9 +96,8 @@ $lang->programplan->confirmDelete     = 'Do you want to delete the current plan?
 $lang->programplan->confirmChangeAttr = 'The type of the sub-stage will be adjusted to "%s" synchronously according to the type of the parent stage after modification. Do you want to save?';
 $lang->programplan->workloadTips      = 'The proportion of the sub stage workload is divided by 100%.';
 
-$lang->programplan->stageCustom = new stdClass();
-$lang->programplan->stageCustom->date = 'Show Date';
-$lang->programplan->stageCustom->task = 'Show Task';
+$lang->programplan->stageCustom['date'] = 'Show Date';
+$lang->programplan->stageCustom['task'] = 'Show Task';
 
 $lang->programplan->ganttCustom['PM']           = 'Manager';
 $lang->programplan->ganttCustom['deadline']     = 'Deadline';
diff --git a/module/programplan/lang/zh-cn.php b/module/programplan/lang/zh-cn.php
index c5c7b85a25..b1a9b5ae82 100644
--- a/module/programplan/lang/zh-cn.php
+++ b/module/programplan/lang/zh-cn.php
@@ -96,9 +96,8 @@ $lang->programplan->confirmDelete     = '确定要删除当前计划吗？';
 $lang->programplan->confirmChangeAttr = '修改后子阶段的类型将根据父阶段类型同步调整为“%s”，是否保存？';
 $lang->programplan->workloadTips      = '子阶段工作量占比按百分百的比例进行拆分';
 
-$lang->programplan->stageCustom = new stdClass();
-$lang->programplan->stageCustom->date = '显示日期';
-$lang->programplan->stageCustom->task = '显示任务';
+$lang->programplan->stageCustom['date'] = '显示日期';
+$lang->programplan->stageCustom['task'] = '显示任务';
 
 $lang->programplan->ganttCustom['PM']           ='负责人';
 $lang->programplan->ganttCustom['deadline']     ='计划完成';
diff --git a/module/programplan/ui/ajaxcustom.html.php b/module/programplan/ui/ajaxcustom.html.php
new file mode 100644
index 0000000000..e8c5d91c12
--- /dev/null
+++ b/module/programplan/ui/ajaxcustom.html.php
@@ -0,0 +1,51 @@
+<?php
+declare(strict_types=1);
+/**
+ * The ajaxCustom view file of programplan module of ZenTaoPMS.
+ * @copyright   Copyright 2009-2023 禅道软件（青岛）有限公司(ZenTao Software (Qingdao) Co., Ltd. www.zentao.net)
+ * @license     ZPL(https://zpl.pub/page/zplv12.html) or AGPL(https://www.gnu.org/licenses/agpl-3.0.en.html)
+ * @author      Shujie Tian <tianshujie@easycorp.ltd>
+ * @package     programplan
+ * @link        https://www.zentao.net
+ */
+namespace zin;
+
+formPanel
+(
+    setID('ajaxCustomForm'),
+    set::title($lang->programplan->settingGantt),
+    formGroup
+    (
+        set::label($lang->execution->gantt->format),
+        radioList
+        (
+            set::name('zooming'),
+            set::items($lang->execution->gantt->zooming),
+            set::value($zooming ? $zooming : 'day'),
+            set::inline(true)
+        )
+    ),
+    formGroup
+    (
+        set::label($lang->programplan->viewSetting),
+        checkList
+        (
+            set::name('stageCustom'),
+            set::items($lang->programplan->stageCustom),
+            set::value($stageCustom),
+            set::inline(true)
+        )
+    ),
+    formGroup
+    (
+        setClass('customField'),
+        set::label($lang->customField),
+        checkList
+        (
+            set::name('ganttFields'),
+            set::items($customFields),
+            set::value($showFields),
+            set::inline(true)
+        )
+    )
+);
diff --git a/module/programplan/view/gantt.html.php b/module/programplan/view/gantt.html.php
index 28b4b2b226..f2eecfeb6f 100755
--- a/module/programplan/view/gantt.html.php
+++ b/module/programplan/view/gantt.html.php
@@ -257,7 +257,7 @@ function drawGanttToCanvas(exportType, successCallback, errorCallback)
     var $ganttDridData  = $ganttView.find('.gantt_grid_data');
 
     var ganttRowHeight = $ganttView.find('.gantt_row').first().outerHeight() || 25;
-    var ganttHeight = $ganttView.find('.gantt_grid_scale').outerHeight() + <?php echo count($plans['data'])?> * ganttRowHeight;
+    var ganttHeight = $ganttView.find('.gantt_grid_scale').outerHeight() + <?php echo count($stages['data'])?> * ganttRowHeight;
     <?php if($selectCustom == 'task'):?>
     var ganttWidth  = $ganttDridData.width() - 100;
     <?php else:?>
@@ -577,7 +577,7 @@ $(function()
         $('#ganttView').css('height', Math.max(200, Math.floor($(window).height() - $('#footer').outerHeight() - $('#header').outerHeight() - $('#mainMenu').outerHeight() - 120)));
     };
 
-    var ganttData = $.parseJSON(<?php echo json_encode(json_encode($plans));?>);
+    var ganttData = $.parseJSON(<?php echo json_encode(json_encode($stages));?>);
     if(!ganttData.data) ganttData.data = [];
 
     <?php
diff --git a/module/programplan/zen.php b/module/programplan/zen.php
index 5590bbd081..f3558ffe40 100644
--- a/module/programplan/zen.php
+++ b/module/programplan/zen.php
@@ -73,7 +73,7 @@ class programplanZen extends programplan
             if(in_array($this->config->edition, array('max', 'ipd')))
             {
                 $plan->planDuration = $this->programplan->getDuration($plan->begin, $plan->end);
-                $plan->realDuration = $this->programplan->getDuration($plan->realBegan, $plan->realEnd);
+                $plan->realDuration = $this->programplan->getDuration((string)$plan->realBegan, (string)$plan->realEnd);
             }
 
             /* Check duplicated names to avoid to save same names. */
@@ -234,7 +234,7 @@ class programplanZen extends programplan
      */
     protected function buildAjaxCustomView(string $owner, string $module, array $customFields)
     {
-        $stageCustom = $this->setting->getItem("owner=$owner&module=$module&section=browse&key=stageCustom");
+        $stageCustom = $this->loadModel('setting')->getItem("owner=$owner&module=$module&section=browse&key=stageCustom");
         $ganttFields = $this->setting->getItem("owner=$owner&module=$module&section=ganttCustom&key=ganttFields");
         $zooming     = $this->setting->getItem("owner=$owner&module=$module&section=ganttCustom&key=zooming");
 
@@ -305,8 +305,44 @@ class programplanZen extends programplan
         $selectCustom = 0; // Display date and task settings.
         $dateDetails  = 1; // Gantt chart detail date display.
 
-        /* Get data of type lists. */
-        if($type == 'lists')
+        /* Get data of type. */
+        if($type == 'gantt')
+        {
+            $this->loadModel('setting');
+            $owner        = $this->app->user->account;
+            $module       = 'programplan';
+            $section      = 'browse';
+            $object       = 'stageCustom';
+            if(!isset($this->config->programplan->browse->stageCustom)) $this->setting->setItem("$owner.$module.browse.stageCustom", 'date,task,point');
+
+            $selectCustom = $this->setting->getItem("owner={$owner}&module={$module}&section={$section}&key={$object}");
+
+            if(strpos($selectCustom, 'date') !== false) $dateDetails = 0;
+
+            $plans = $this->programplan->getDataForGantt($projectID, $productID, $baselineID, $selectCustom, false);
+
+            /* Set Custom. */
+            foreach(explode(',', $this->config->programplan->custom->customGanttFields) as $field) $customFields[$field] = $this->lang->programplan->ganttCustom[$field];
+            $this->view->customFields = $customFields;
+            $this->view->showFields   = $this->config->programplan->ganttCustom->ganttFields;
+        }
+        elseif($type == 'assignedTo')
+        {
+            $owner        = $this->app->user->account;
+            $module       = 'programplan';
+            $section      = 'browse';
+            $object       = 'stageCustom';
+            $selectCustom = $this->loadModel('setting')->getItem("owner={$owner}&module={$module}&section={$section}&key={$object}");
+            if(strpos($selectCustom, 'date') !== false) $dateDetails = 0;
+
+            $plans = $this->programplan->getDataForGanttGroupByAssignedTo($projectID, $productID, $baselineID, $selectCustom, false);
+
+            /* Set Custom. */
+            foreach(explode(',', $this->config->programplan->custom->customGanttFields) as $field) $customFields[$field] = $this->lang->programplan->ganttCustom[$field];
+            $this->view->customFields = $customFields;
+            $this->view->showFields   = $this->config->programplan->ganttCustom->ganttFields;
+        }
+        elseif($type == 'lists')
         {
             $sort   = common::appendOrder($orderBy);
             $stages = $this->programplan->getPlans($projectID, $productID, $sort);