You can edit certain elements of your custom areas using the Edit button on the Manage Custom Areas tab.
When you click the Edit button, it will open a popup where you can edit:
- Area name
You cannot edit the area definition once the area has been created.
Changing the name of a custom area will be reflected on the reports tab. So previously generated reports for that area will reflect the name change on the reports tab list. However, if you download those previously generated reports they will contain the old name.