diff --git a/app_hr_department_zchart/i18n/zh_CN.po b/app_hr_department_zchart/i18n/zh_CN.po
index 93cfbf6d..110571fe 100644
--- a/app_hr_department_zchart/i18n/zh_CN.po
+++ b/app_hr_department_zchart/i18n/zh_CN.po
@@ -42,7 +42,7 @@ msgstr ""
 
 #. module: app_product_category_chart
 #: model_terms:ir.ui.view,arch_db:app_product_category_chart.app_product_category_form_view
-msgid "Please get widget from https://apps.odoo.com/apps/modules/13.0/app_web_chart_hierarchy/"
+msgid "Please get widget from https://apps.odoo.com/apps/modules/13.0/app_web_widget_ztree/"
 msgstr ""
 
 #. module: app_product_category_chart
diff --git a/app_mrp_production_zchart/static/description/demo37.jpg b/app_mrp_production_zchart/static/description/demo37.jpg
new file mode 100644
index 00000000..a443ce8c
Binary files /dev/null and b/app_mrp_production_zchart/static/description/demo37.jpg differ
diff --git a/app_mrp_production_zchart/static/description/demo41.jpg b/app_mrp_production_zchart/static/description/demo41.jpg
new file mode 100644
index 00000000..bf7364ec
Binary files /dev/null and b/app_mrp_production_zchart/static/description/demo41.jpg differ
diff --git a/app_mrp_production_zchart/static/description/index.html b/app_mrp_production_zchart/static/description/index.html
index f7eacde8..937dd17c 100644
--- a/app_mrp_production_zchart/static/description/index.html
+++ b/app_mrp_production_zchart/static/description/index.html
@@ -80,6 +80,10 @@
                         <i class="fa fa-check-square-o text-primary"></i>
                         Free to Use in product category.
                     </li>
+                    <li>
+                        <i class="fa fa-check-square-o text-primary"></i>
+                        Little Paid for Use in Multi-Level Bom Chart.
+                    </li>
                     <li>
                         <i class="fa fa-check-square-o text-primary"></i>
                         Free to Use in stock location.
@@ -115,27 +119,31 @@
                 <ul class="list-unstyled">
                     <li>
                         <i class="fa fa-link text-primary"></i>
-                        <a href="http://www.odoo.com/apps/modules/16.0/app_mrp_production_zchart/" target="_blank">MRP Production zChart Hierarchy</a>
+                        <a href="./app_mrp_production_zchart/" target="_blank">MRP Production zChart Hierarchy</a>
                     </li>
                     <li>
                         <i class="fa fa-link text-primary"></i>
-                        <a href="http://www.odoo.com/apps/modules/16.0/app_product_category_zchart/" target="_blank">Product category zChart hierarchy</a>
+                        <a href="./app_product_category_zchart/" target="_blank">Product category zChart hierarchy</a>
                     </li>
                     <li>
                         <i class="fa fa-link text-primary"></i>
-                        <a href="http://www.odoo.com/apps/modules/16.0/app_stock_location_zchart/" target="_blank">Stock Location zChart hierarchy</a>
+                        <a href="./app_mrp_bom_zchart/" target="_blank">Multi-Level Bom Chart.zChart hierarchy</a>
                     </li>
                     <li>
                         <i class="fa fa-link text-primary"></i>
-                        <a href="http://www.odoo.com/apps/modules/16.0/app_hr_department_zchart/" target="_blank">hr department employee zchart hierarchy</a>
+                        <a href="./app_stock_location_zchart/" target="_blank">Stock Location zChart hierarchy</a>
                     </li>
                     <li>
                         <i class="fa fa-link text-primary"></i>
-                        <a href="http://www.odoo.com/apps/modules/16.0/app_account_zchart/" target="_blank">Account chart hierarchy(chinese only)</a>
+                        <a href="./app_hr_department_zchart/" target="_blank">hr department employee zchart hierarchy</a>
                     </li>
                     <li>
                         <i class="fa fa-link text-primary"></i>
-                        <a href="http://www.odoo.com/apps/modules/16.0/app_users_zchart/" target="_blank">User Alliance Distribution Multi level zchart hierarchy</a>
+                        <a href="./app_account_zchart/" target="_blank">Account chart hierarchy(chinese only)</a>
+                    </li>
+                    <li>
+                        <i class="fa fa-link text-primary"></i>
+                        <a href="./app_users_zchart/" target="_blank">User Alliance Distribution Multi level zchart hierarchy</a>
                     </li>
                 </ul>
             </div>
@@ -153,6 +161,26 @@
     </div>
 </section>
 
+<section class="container oe_container">
+    <div class="oe_row oe_spaced">
+        <h2>&nbsp;</h2>
+        <h2 class="bg-warning text-center pt8 pb8 mt16 mb16">Little Paid for Use in Multi-Level Bom Chart.</h2>
+        <div class="oe_demo oe_screenshot img img-fluid">
+            <img src="demo41.jpg">
+        </div>
+    </div>
+</section>
+
+<section class="container oe_container">
+    <div class="oe_row oe_spaced">
+        <h2>&nbsp;</h2>
+        <h2 class="bg-warning text-center pt8 pb8 mt16 mb16">Free to Use in Manufacture Order multi level. For Multi level MO MRP Production Order from multi bom.</h2>
+        <div class="oe_demo oe_screenshot img img-fluid">
+            <img src="demo37.jpg">
+        </div>
+    </div>
+</section>
+
 <section class="container oe_container">
     <div class="oe_row oe_spaced">
         <h2>&nbsp;</h2>
diff --git a/app_product_category_zchart/__manifest__.py b/app_product_category_zchart/__manifest__.py
index 66e5a318..27005200 100644
--- a/app_product_category_zchart/__manifest__.py
+++ b/app_product_category_zchart/__manifest__.py
@@ -34,13 +34,9 @@
     Free for category Hierarchy chart, stock Hierarchy chart. account chart.
     """,
     'description': """
-Need extra paid apps https://www.odoo.com/apps/modules/14.0/app_web_chart_hierarchy/
+Need extra paid apps https://www.odoo.com/apps/modules/16.0/app_web_widget_ztree/
 This module extend to show a Hierarchy chart.
 (N+1, N+2, direct subordinates)
-image: image_field,
-desc: descript_field,
-direct_sub: children_field, must be one2many,
-child_all_count: child_all_count field, count of direct and indirect children.
     """,
     'price': 0.00,
     'currency': 'EUR',
diff --git a/app_product_category_zchart/i18n/zh_CN.po b/app_product_category_zchart/i18n/zh_CN.po
index 93cfbf6d..110571fe 100644
--- a/app_product_category_zchart/i18n/zh_CN.po
+++ b/app_product_category_zchart/i18n/zh_CN.po
@@ -42,7 +42,7 @@ msgstr ""
 
 #. module: app_product_category_chart
 #: model_terms:ir.ui.view,arch_db:app_product_category_chart.app_product_category_form_view
-msgid "Please get widget from https://apps.odoo.com/apps/modules/13.0/app_web_chart_hierarchy/"
+msgid "Please get widget from https://apps.odoo.com/apps/modules/13.0/app_web_widget_ztree/"
 msgstr ""
 
 #. module: app_product_category_chart
diff --git a/app_product_category_zchart/static/description/index.html b/app_product_category_zchart/static/description/index.html
index 9caa481f..ee37acec 100644
--- a/app_product_category_zchart/static/description/index.html
+++ b/app_product_category_zchart/static/description/index.html
@@ -46,7 +46,7 @@
             </div>
 
         <h1 class="text-danger text-center">Buy
-            <a href="https://www.odoo.com/apps/modules/14.0/app_web_chart_hierarchy/">
+            <a href="https://www.odoo.com/apps/modules/16.0/app_web_widget_ztree/">
             this 1 chart hierarchy
             </a>
                 in odoo Store. Get free 5 related free apps.
diff --git a/app_stock_location_zchart/__manifest__.py b/app_stock_location_zchart/__manifest__.py
index 68d87a45..483f83d8 100644
--- a/app_stock_location_zchart/__manifest__.py
+++ b/app_stock_location_zchart/__manifest__.py
@@ -34,7 +34,7 @@
     Free for category Hierarchy chart, stock Hierarchy chart. account chart.
     """,
     'description': """    
-Need extra paid apps https://www.odoo.com/apps/modules/13.0/app_web_chart_hierarchy/ 
+Need extra paid apps https://www.odoo.com/apps/modules/16.0/app_web_widget_ztree/ 
 This module extend to show a Hierarchy chart.
 (N+1, N+2, direct subordinates)
 image: image_field,
diff --git a/app_stock_location_zchart/static/description/index.html b/app_stock_location_zchart/static/description/index.html
index cbe36d02..89ae4f15 100644
--- a/app_stock_location_zchart/static/description/index.html
+++ b/app_stock_location_zchart/static/description/index.html
@@ -46,7 +46,7 @@
             </div>
 
         <h2 class="bg-warning text-center pt8 pb8 mt16 mb16">Buy
-            <a href="https://www.odoo.com/apps/modules/13.0/app_web_chart_hierarchy/">
+            <a href="https://www.odoo.com/apps/modules/16.0/app_web_widget_ztree/">
             this 1 chart hierarchy
             </a>
                 in odoo Store. Get free 5 related free apps.