Docs: update

Author: jcs090218

docs/ScriptReference/Events/System/JCS_AdditiveSceneLoadEvent.md

@@ -4,17 +4,19 @@ Better version of scene manager.
 
 ## Variables
 
-| Name              | Description                                             |
-|:------------------|:--------------------------------------------------------|
-| onSwitchSceneInit | Custom callback when initialize stage.                  |
-| onSwitchSceneLoad | Custom callback when on load scene stage.               |
-| onSwitchSceneIn   | Custom callback when completed the fade in transition.  |
-| onSwitchSceneOut  | Custom callback when completed the fade out transition. |
-| mSwitchSceneType  | Type/Method to switch the scene.                        |
-| mAlign            | Which direction to fade slide.                          |
-| mOverrideSetting  | Do this scene using the specific setting.               |
-| mSceneFadeInTime  | Fade in time. (For this scene)                          |
-| mSceneFadeOutTime | Fade out time. (For this scene)                         |
+| Name               | Description                                             |
+|:-------------------|:--------------------------------------------------------|
+| onSwitchSceneInit  | Custom callback when initialize stage.                  |
+| onSwitchSceneLoad  | Custom callback when on load scene stage.               |
+| onSwitchSceneIn    | Custom callback when completed the fade in transition.  |
+| onSwitchSceneOut   | Custom callback when completed the fade out transition. |
+| mSwitchSceneType   | Type/Method to switch the scene.                        |
+| mOverlaySceneNames | A list of addictive scene to load.                      |
+| mOverlayUseAsync   | Load additive overlay scenes asynchronously.            |
+| mAlign             | Which direction to fade slide.                          |
+| mOverrideSetting   | Do this scene using the specific setting.               |
+| mSceneFadeInTime   | Fade in time. (For this scene)                          |
+| mSceneFadeOutTime  | Fade out time. (For this scene)                         |
 
 ## Functions