Multi Party Private Quest for Alliance/Friends?

Quick question! Is there any way to make a Multi Party Quest private? For instance, when Urgent Quests start, I'd like to be able to set up a quest so my party of 4 can go, along with 2 other parties of 4, all from my alliance. This way our group of 12 can tackle it together. Instead It's a rush to try to join off of one group before the room fills up with random folks. Even with turning on Alliance Members or Friends Only randoms still take up the Multi Party spaces. Is there any way to make those spaces private? Thanks in advance.

You need to add a password to your party and make sure to block random Multi-party joining (second bubble underneath the password field); this creates a private instance. The other parties you want to join can then select your party from the Quest counter and join your instance using the password.