And for the benefit of people who haven't played Diablo how are they to know what you are talking about?
You should always -always - give as much detailed information as you can possibly given, including functions and screen shots even if necessary.
I've never played Diablo let alone Diablo 2. I think it's a mouse based setting? I have no clue, you should fill me (who would've searched if he knew what you were talking about) and others (who might've scripted had we knew what you were talking about) in on the exact details.