Hi,
I don't think there's a way to accomplish what you're after.
With respect to the ap's getting hung, you might consider upgrading your controller's code to 7.0.98.218 or 7.0.116.0.
I don't know of any bugs off of the top of my head that could be causing the ap hangs, but it would probably be worth your time to upgrade (7.0.98.0 was the first release of 7.0 code).
It might also be helpful to have one of your techs console into one of the hung ap's to get a better idea of what's going on.