An inquisitor of the Tactics subdomain get "Seize the initiative" at level 1 :
Seize the Initiative (Su): Whenever you and your allies roll for initiative, you can grant one ally within 30 feet the ability to roll twice and take either result. This decision is made before results are revealed. You can use this ability a number of times per day equal to 3 + your Wisdom modifier.
May this effect be applied to multiple allies, and or to the inquisitor itself ?
I would say it may not, but I am really not sure about this.