diff --git a/docs/30_Page/10_Page_layout.md b/docs/30_Page/10_Page_layout.md
index ddcfea6730841624b78076c9ecdcf21b1a22073a..055e8b88471762dce2869d00be7bd11e897d141c 100644
--- a/docs/30_Page/10_Page_layout.md
+++ b/docs/30_Page/10_Page_layout.md
@@ -34,6 +34,17 @@ Variable           | Description
 {{PAGE_FOOTER_RIGHT}} | page: footer on the left |
 {{PAGE_FOOTER_LEFT}}  | page: footer on the right |
 
+
+#### No left sidebar
+
+This shows the left sidebar:
+`'{{PAGE_LAYOUT}}'  =>'layout-navbar-fixed layout-fixed sidebar-mini',`
+
+This hides the left sidebar:
+`'{{PAGE_LAYOUT}}'  =>'layout-top-nav sidebar-collapse',`
+
+If you don't have any left sidebar then additionally remove the hampurger menu from the top menu.
+
 ## Initial example
 
 ### Init Renderer class
diff --git a/docs/30_Page/20_Navigation.md b/docs/30_Page/20_Navigation.md
index 9ca7f4319423e4db94711448f4ac39517345a97f..2b4daa9ea14addb8e1bb774b28b98e3e69ccbfca 100644
--- a/docs/30_Page/20_Navigation.md
+++ b/docs/30_Page/20_Navigation.md
@@ -6,6 +6,7 @@ For the top navigation and left the basic array looks like this:
 
 ```php
 return [
+    ['label'=>'='],
     ['href'=>'#',          'label'=>'Menu A', 'icon'=>'fa-solid fa-home' ],
     ['href'=>'#',          'label'=>'Menu B', 'icon'=>'fa-solid fa-tv'],
     ['href'=>'#',          'label'=>'Menu C', 'icon'=>'fa-solid fa-truck-pickup', 'class'=>'active',
@@ -29,6 +30,8 @@ children | array that contains 2nd Level
 For top navigation in thwe 2nd level (below children) define a label value with a single minus character to draw a line:
 `['label'=>'-']`
 
+The hamburger menu is rendered by `['label'=>'=']`. Remove this item when you don't want a left sidebar or it is static.
+
 ### Show navigation on top
 
 The top navigation is for the placeholder `{{NAVI_TOP}}`.
diff --git a/docs/40_Components/Tabbed_content.md b/docs/40_Components/Tabbed_content.md
new file mode 100644
index 0000000000000000000000000000000000000000..7e0a3eb31a4a363747a03b3cd7b75582e7c623d9
--- /dev/null
+++ b/docs/40_Components/Tabbed_content.md
@@ -0,0 +1,41 @@
+## Tabbed content
+
+Show multiple horizontal tabs and a content container that switches its content by selecting a tab.
+
+### Syntax
+
+```php
+$renderAdminLTE->getTabbedContent($aOptions, $asArray=false);
+```
+
+### Return
+
+{string} html code or {array}
+
+### Parameters
+
+* $aOptions - {array} options to describe the element
+
+Styling:
+
+Key      | Description
+---      | ---
+asArray  | boolean; if true it returns an array for tab list and container to draw them individually
+
+Content:
+
+Key           | Description
+---           | ---
+tabs          | tabs {array} key=tab label; value=content
+
+### Example
+
+```php
+$renderAdminLTE->getTabbedContent(array (
+  'tabs' => array(
+    'one'=>'content of tab one',
+    'two'=>'content of 2nd tab',
+    'three'=>'content of 3rd tab',
+  )
+));
+```