It may be required that states appear in a certain order in the
user interfaces. For example, "Open" must appear before "Closed". This
field can be used to order your states.
Changing the Display Order
From the toolbar click Setup+Company
Under configure modules section click Configure
for workflow
Click Application
Select an application
Select a process type. Click
Workflow
Click Edit State, and under the Display
Order field enter the orders in which the States should
appear.