diff --git a/docs/v2.6/23_extending-ui.md b/docs/v2.6/23_extending-ui.md
new file mode 100644
index 0000000..eded46a
--- /dev/null
+++ b/docs/v2.6/23_extending-ui.md
@@ -0,0 +1,40 @@
+---
+slug: /current/extending-ui
+sidebar_position: 23
+sidebar_label: Extending UI
+---
+
+# Extending UI
+
+:::info
+
+This page shows you how to extend UI for the SDK.
+
+:::
+
+To Extend UI for the SDK, you can create your own UI scripts that inherit from `GuiScreen`
+
+## Overlays
+
+There are three overlay types `GuiOverlayManager.GuiOverlayType` available in the SDK:
+
+1. **Error :** Displays an error message.
+2. **Loading :** Displays a message with a loading spinner.
+3. **Toast :** Displays a toast message with a timeout.
+
+### Usage
+
+To show an overlay, you can call the following method:
+
+```csharp
+int GuiManager.Instance.Overlays.Show(GuiOverlayType type, string message, bool deactivateOnClick, Action onClose = null, float timeOut = 0)
+```
+
+| **Name**            | **Type**         | **Description**                                                                                      |
+|---------------------|------------------|------------------------------------------------------------------------------------------------------|
+| `type`              | `GuiOverlayType` | Type of the overlay, it be `Error`, `Loading` or `Toast`                                             |
+| `message`           | `string`         | Message to display in overlay                                                                        |
+| `deactivateOnClick` | `bool`           | Can overlay be closed on click                                                                       |
+| `onClose`           | `Action`         | Callback to be invoked when overlay is closed                                                        |
+| `timeOut`           | `float`          | Time in seconds after which overlay should be closed, if it is equal to 0 then it has has no timeout |
+
diff --git a/sidebars.js b/sidebars.js
index 6e749ab..1ae0c07 100644
--- a/sidebars.js
+++ b/sidebars.js
@@ -35,6 +35,7 @@ module.exports = {
             'v2.6/ramp',
             'v2.6/lootboxes',
             'v2.6/extending-the-sdk',
+            'v2.6/extending-ui',
           ],
         },
         {