The level of maturity in this game

[seekerofpower]

To change leader, you go into Social menu, Party tab, right click the person's name and click promote. I'm fairly certain you can still do this in a dungeon (I may be wrong, I haven't tried since the game went live, but, yes, it was doable in Beta 3).

[Slatervonjager]

There's no option for it now then, cause I've tried doing it before.