Hmm.... Would you explain the last part of your post, about the STRING HANDLER and send_string_to(client_number,string), a bit more clearly? I probably didn't understand it correctly...
how can you have a client_number as a parameter in the send_string_to function, when it should be an entity? I believe there is no other way to send data to a specific client, if he doesn't create an entity... of course you can send the data to all of the clients, and have them check if they are the right one, but that is just a terrible waste of bandwith :p