Following fields are available on the form :
Once the locations are added their list can be viewed on locations index page.
This screenshot shows the country list. You can click on "View States" to go to cities that have been added under the country.
You get similar form as you get during add location.
If you want to change the parent location , then a form similar to the one shown below will be available to select the new parent.
When it comes to changing the parent for a lower level location then you would get option to change not parents upto the top level in hierarchy.