How to set my facebook page so that no one can add me, only i can add them?

[Simi]

In earlier facebook settings we do have option as "No One" next to Send me Friend Request button in privacy settings, but with new look of facebook we do have only two options i.e. Everyone or Friends of Friends..

So if person has selected No One in earlier settings.. then that settings cannot be changed by Facebook coz it was set by user unless and until it is to be edited by the user now.

Other wise you can set it for Friend of Friend as follows: (if you wish)
Account>Privacy Settings> Under Basic Directory Information >Click on View settings and select the option Friend of Friends next to Send me Friend Request.

That's it Dear..Hope it helps