If you’re missing the “Column Ordering” setting in your SharePoint 2010 list settings then go to:
List settings -> Advanced Settings -> “Allow Management of Content Types?”
If already yes, change the radio button to ”No” and press “Ok”. Now check for the “Column ordering” link.
Reference URL : http://www.hancockcomputertech.com/blog/2011/08/01/missing-column-ordering-in-sharepoint-2010-list-settings/
