How do I make member structs accessible in the editor?

Suppose I have a class Foo and some member data that I wish to encapsulate in a struct Bar, like so:

Code (csharp):

1. using UnityEngine;
2. using System.Collections;
3.  
4. public class Foo : MonoBehaviour
5. {  
6.     public struct Bar { public int a; public float b; }
7.     public Bar m_bar;
8. }

Is there a way for me to make the members of m_bar editable through the Inspector of Foo?

---------------------------------------------------------

Want to re-resurrect, I have also gotten this to work, I got allot of errors, but I copy and pasted your code, swapped some stuff, deleted your code and put in my own and it works,

EDIT: I would also like to note that structs in structs work also, very good for organization!

ref : https://forum.unity.com/threads/how-do-i-make-member-structs-accessible-in-the-editor.36395/