Pushing out authentication changes

Is there a simple way to push out system wide authentication changes using Wireless Manager or CNUT tool?  I'm looking to change the pre shared key on all the equipment at one time without changing all SM's and AP's individually.  Thanks for any help.

In 13.4 (Build 7), we offer the ability to push a configuration file to a radio (AP/SM).  I will need some time to see if there is an easy way to do this via WM.

In WM, you would just create a configuration template containing the keys and then push the template out to the desired devices.