Type members layout

Hello,
I've changed the default type members layout to group my code into custom regions, but I didn't manage to create #region in #region. Is this possible using patterns ?
I need to generate the following code:

#region Properties

#region Field1
public int Field1 {get;set;}
#endregion

///.. and so on

#endregion

...and also for methods.

I tried to use two patterns and/or using "Weights" , but always only one ]]> is matched.