Is there a mouselook toggle?

This is the first MMO that I have not been able to locate the key I need; for those of you that know what I am talking about, is there one?

For those that don't, most MMO games have a toggle that is usually called Mouselook, and instead of having to hold down the right mouse button to steer while you run, it locks it. So you can hit autorun and just steer. Great finger saver.

Crossing my fingers that it exists here and is just hard to find....:o