Hello

I don't know if this is at all possible but I think you should make account wide friend lists.

Account wide friends can contact each other even if they are using an alternate character. I believe this would be beneficial because some people have 5 or more characters and it is rather hard to keep track of them all, with an account wide friend you would only have them on your list once (rather than 5 times).

Also it would be nice to be able to add people to your friends list if they are offline.