Can we at least invite friends into locked Servers

Let us at least generate codes to invite our friends into the locked servers, its going to be hard to convince everyone I know with a level 50 to reroll onto a new server, and I bet guilds are having an even harder time coping with this as well.

As much as I want this solution, and am having the same issues with my Guild, people are scum and will just end up selling the codes…