Docking Windows using EditorWindow

Hi,

I am new to unity and am trying to figure out how to make a window have sub-windows that are docked.

I have a MainWindow class that calls two other EditorWindow classes (Events, Banks):

MainWindow Class:

 using UnityEditor;
 using UnityEngine;
 
 public class MainWindow : EditorWindow {
 
     void OnGUI()
     {
     }
 
     //Add menu item named "My Window" to the window menu
     [MenuItem("MIG/AudioTool")]
     public static void Init()
     {
         //Show existing window instance. If one doesn't exist, make one.        
         MainWindow.GetWindowWithRect<MainWindow>(new Rect(Screen.width/2 - 300, Screen.height/2 - 300, 1024,768));
         Events eventsWindow = (Events)EditorWindow.GetWindow(typeof(Events));
         Banks banksWindow = (Banks)EditorWindow.GetWindow(typeof(Banks));    
     }
 }//end class

Events Class:

 using UnityEditor;
 using UnityEngine;
 public class Events : EditorWindow {
 }

Banks Class:

 using UnityEditor;
 using UnityEngine;
 public class Banks : EditorWindow {
 }

This is what i get: ![alt text][1]

This is what i want with the sidebars adjustable: ![alt text][2]

Appreciate any feedback, Thanks [1]: /storage/temp/6504-screen+shot+2013-01-08+at+5.40.23+pm.png [2]: /storage/temp/6505-screen+shot+2013-01-08+at+5.40.56+pm.png