diff --git a/_config.yml b/_config.yml
index 61c9952..ae9ae7c 100644
--- a/_config.yml
+++ b/_config.yml
@@ -3,6 +3,8 @@ repository: dynamsoft-docs/camera-enhancer-docs
 docFullPath: https://www.dynamsoft.com/camera-enhancer/docs/core/
 firstLevelUrl: /camera-enhancer/docs/core
 docHomePage: /camera-enhancer/docs/core/introduction/
+needSearchIndex: true
+searchNeedFilter: true
 
 productUrl: https://www.dynamsoft.com/camera-enhancer/overview/
 productName: Dynamsoft Camera Enhancer
diff --git a/enums/camera-position.md b/enums/camera-position.md
index 83d29c7..2fd6a20 100644
--- a/enums/camera-position.md
+++ b/enums/camera-position.md
@@ -31,13 +31,25 @@ public @interface EnumCameraPosition {
 ```
 >
 ```objc
-typedef NS_ENUM(NSInteger, DSCameraPosition)
-{
-   /** The back-facing camera. */
-   DSCameraPositionBack = 0,
-   /** The front-facing camera. */
-   DSCameraPositionFront = 1
-};
+typedef NS_ENUM(NSInteger, DSCameraPosition) {
+   /**
+     * The default back-facing camera. It is a wide-angle camera for general usage.
+     */
+    DSCameraPositionBack,
+   /**
+     * The front-facing camera.
+     */
+    DSCameraPositionFront,
+   /**
+     * The back-facing ultra-wide-angle camera. It is an ultra-wide-angle camera for macro-distance capturing.
+     */
+    DSCameraPositionBackUltraWide API_AVAILABLE(ios(13.0)),
+   /**
+     * A back-facing virtual camera. It is a vitural camera that can switch between the wide-angle camera and the ultra-wide-angle camera automatically.
+     * Supported devices include: iPhone 13 Pro, iPhone 13 Pro Max, iPhone 14 Pro, iPhone 14 Pro Max, iPhone 15 Pro, iPhone 15 Pro Max.
+     */
+    DSCameraPositionBackDualWideAuto API_AVAILABLE(ios(13.0))
+} NS_SWIFT_NAME(CameraPosition);
 ```
 >
 ```swift
@@ -46,5 +58,14 @@ public enum CameraPosition : Int{
    back = 0
    /** The front-facing camera. */
    front = 1
+   /**
+     * The back-facing ultra-wide-angle camera. It is an ultra-wide-angle camera for macro-distance capturing.
+     */
+   backUltraWide = 2
+   /**
+     * A back-facing virtual camera. It is a vitural camera that can switch between the wide-angle camera and the ultra-wide-angle camera automatically.
+     * Supported devices include: iPhone 13 Pro, iPhone 13 Pro Max, iPhone 14 Pro, iPhone 14 Pro Max, iPhone 15 Pro, iPhone 15 Pro Max.
+     * */
+   backDualWideAuto = 3
 }
 ```