Change password through Web Interface.

I'm messing with the 6.0.4 web interface.  I was looking at self service thinking that it would be a great way to provide external accounts with a way to change their password. 

I'm sure it's possible but wanted to know if the feature is built-in somewhere and I just need to check a box, or do I need to provide the password fields.




Also is there a way to search the forums?  I can't seem to search to see if this question has been asked before.