Changing N+1 AP Failover Priority

[scot.bell1]

Im Running a Pair of 8510's in seperate data centers with Code Ver 8.2.167, and roughly 3,500  2702i APs. 

Im trying to manage the N+1 Failover Priority setting on the APs and I don't see any option for that in Prime Infra 3.4 Lightweight AP config template.

If I use the CLI Command: 
config ap priority {1 | 2 | 3 | 4} Cisco_AP_Name        it gives the error "AP Already Configured" 

I need a way to change the priority for many, or all the APs, and doing it individually on each AP is not a useable option for my situation.

[scot.bell1]

DISREGARD - Found Failover Priority setting in PI Lightweight Config Template - see below.

Not exactly with the other N+1 settings