static function OpenSceneAdditive (path : String) : void

Description

Opens the scene at path additively.

All paths are relative to the project folder. Like: "Assets/MyScenes/MyScene.unity".

    // Simple script that lets you load the contents of a selected scene 
    // to your current scene.
    
    @MenuItem("Example/Load Scene Additive") 
    static function Apply () { 
        var strScenePath : String = AssetDatabase.GetAssetPath(Selection.activeObject); 
        if (strScenePath == null || !strScenePath.Contains(".unity"))  {
            EditorUtility.DisplayDialog("Select Scene", "You Must Select a Scene!", "Ok");
            EditorApplication.Beep(); 
            return; 
        } 
        Debug.Log("Opening " + strScenePath + " additively"); 
        EditorApplication.OpenSceneAdditive(strScenePath); 
    }