I am new to LyX so I'm sorry if this question is really naive.
I'm using LyX on a MacBook and I'm hoping to use the AEA document class on it. Since it is not available automatically, seems that I need to somehow install it on my own. All the help pages I can find talks about layouts and stuff that I, as total layman, have no idea what they are. Can somebody please show me how I can do it with simple language?