If you have Content Type management enabled for the list (if you see a list of content type with the option to add more), the display order of columns is set for each content type. Drill down into one of them and you'll see the option under the list of columns for that content type.

Why isn't "Column ordering" available in my list settings?
I purchased a neo angle shower and I am installing it on the second floor of my house.  I have the pan down and I am ready to drywall.  which is safer to use, cement board or green board behind the shower panels?
