MyBB Community Forums

I would like to add a droplist to the navigation bar as already programmed on this site http://protechmodz.com/index.php or http://www.mybbsecurity.net/ (I am not advertising im using it as a Example) Is there a plugin that I can use to do this please Pm me support im very very new to mybb, so I would appreciate all the help I can get at this point.
-Thank you
Q
I had just realized I posted this in the wrong section I am truly sorry for that.

try this :
http://community.mybb.com/thread-119435.html

this should help you
regards