Hey there, this thread will tell you how to change your instances into Epic Diffculty (You cannot play through them like Heroic or Normal though )
Anyway to do this you just write this in /s /script SetDungeonDifficulty(3);
When you do this you will get a message saying "Dungeon Difficulty set to Epic" or something like that. You can now walk through the instance portals without "zoning" into them, it's great for ganking )
I am sorry if this is a repost, have fun! :irock: