How to make setting on facebook chat box that Only some friends see you

To day i`m going to tell  you How to make setting on facebook chat box   that Only some friends see you and When you are chatting with your all friends, how to chat with few friends on one chat box.When you are chatting with your friends you have to go online mode on facebook chat box.Then many friends will send lot of massages and we can`t answer for all massage.So we can make setting for see only some friends.

When you are chatting with your all friends, how to chat with few friends on one chat box

You can see "setting icon" on your chat box(window) and select it.Then you can see "Add friends to chat ".select it.

 Then you can see below window
                                                  
Type a name what you want to add your friend`s name and click "done" button 

How to make setting on facebook chat box   that Only some friends see you


Go to chat box
          




Now select "option" button then you can see "Advance setting".select it and choose 'Only some friends see you'.