how to block access from people chatting to you on facebook?

[lupita D]

Maybe if you try at the top of the window chat, where you choose if you're available to chat, and if you want "chat sounds" there's another option that says: "limit availability". There you can choose some groups of people with whom you only want to choose to chat, maybe you can add this people with whom you do not want to chat to a group. The available groups are: acquaintances and close friends. I also have another group, my relatives, but I think that's because I have photos that only "my relatives" can see. How to add the people to the groups, than I don't know because I have never done it, but, maybe if you ask in facebook help.