Hum Azoriel, he was asking about changing the aura from the PHB2's Dragon Shaman more then once per round. I don't remember seeing ANYTHING about changing the maneuvers a martial character from the TOB would get which is what it appears that you answered.
Now I can't think of any way to change your aura more then once per round
but I also wonder why you'd want to do that.
Doesn't work. Gaining a full-round action doesn't include a swift action.
But this is really much more important. There's little benefit, beyond maybe switching between the damage aura and the healing aura or some such.