Grouping Methods in Test Structure of Nunit Gui

Currently I have nunit's gui Test Structure setup to use Automatic Namespace suites.

I was wondering if it was possible to group up method names inside the TestFixture.

At the moment, the tree looks like

MyClassTest
 +Method-1 test1
 +Method-1 test2
 +Method-1 test3
 +Method-2 test1...

I was wondering if it's possible to have the tree look like

MyClassTest
 +Method1
   ++Method-1 Test1
   ++Method-1 Test2
   ++Method-1 Test3
 +Method2
   ++Method-2 Test1

Why do I want to do this? It's because I would like to just select the "Method-1" node and have it run all the tests for that method. I just saves me开发者_如何学编程 the issue of checking all the tests of that method.

Background: using vb.net with vs2010 pro.

Edit: If I create a class inside "Myclass" called "Method1" I get the following

MyClassTest
 +Method-2 test1
MyCalssTest+Method-1
   +Test1
   +Test2

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I do this by creating a Method1 test fixture class and having the Method1Test1, Method1Test2, etc. test functions as members of that class. E.g. (in C#)

[TestFixture]
public class Method1
{
    [Test]
    public void Method1Test1()
    {
       ... 
    }

    [Test]
    public void Method1Test2()
    {
       ... 
    }
} 

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NUnit's Category attribute may help too.