Change password via cnMaestro Template, and Firewall help (ssh)

Hi.  I've never used the templates on cnMaestro, but I have a need to mass change passwords (and probably WPA2 Keys) everywhere...   I know it's probably simple - but I have a lot on my plate at the moment, so a dummy proof guide (or point me to the right forum thread alread) would be appreciated. :)

ALSO - along the same lines, an example of firewall on an SM, to block being able to SSH 'though' that connection would also be helpful to me.

Here is how to change the password via cnMaestro template