For Replying SpecFlow Google Group Discussion, http://groups.google.com/group/specflow/browse_thread/thread/81eccf7757a3a9bb

Feature1.feature

@one
Feature: SpecFlow Group
	In order to reply specflow group
	As a group member
	I want to answer the discussion

Scenario: Answer discussion
	Then I can anwer discussion

Feature2.feature

Feature: SpecFlow Group 2
	In order to reply specflow group 2
	As a group member
	I want to answer the discussion

Scenario: Answer discussion 2
	Then I can anwer discussion 2

StepDefinitions.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using TechTalk.SpecFlow;

namespace SpecFlowThinking
{
    [Binding]
    public class StepDefinitions
    {
        [BeforeFeature("one")]
        public static void TestSetup()
        {
            Console.WriteLine(">>>>feature 1 begin.");
        }

        [Then(@"I can anwer discussion")]
        public void ThenICanAnwerDiscussion()
        {
            Console.WriteLine(">>>>feature 1 executed.");            
        }

        [Then(@"I can anwer discussion 2")]
        public void ThenICanAnwerDiscussion2()
        {
            Console.WriteLine(">>>>feature 2 executed.");
        }
    }
}