Before closing Subset Editor, make sure that the Subset Editor area selection tool is not active 
(waiting for you to select a new area).
1. Select the Subset Editor command.
Menu | Tools > Editors > Subset > Open/Close Editor |
Tool |
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If changes were made to the data, you are prompted to save them.
2. Click OK to save changes.
Subset Editor is closed and no longer displayed in the interface.