How to add an association class to a diagram

How do I add an association class to a diagram? I was thinking that I should select the association class in the palette then drag off some association. This didn’t work and I can’t find anything in the forums or online docs that diecribes how this is done.

Never mind!

I figured it out.

I had to create a class then select the assocation class in the palette. I could then drag from an association and link to the new class.