You can edit location groups associated with your locations one at a time or many at once (http://j.mp/15Kx9Qu).
To Edit a Location Group:
1. Click the "Libraries" tab.
2. Click the "Location Library" link.
3. In the library table, under the Location Group column, type the "Location Group" in the filter field for the location group you wish to edit. Hit the "Enter" or "Tab" key on your keyboard.
4. Click the pencil icon (edit) for the location group. This will take you to the "Edit" panel where you can type in the Location Group in the field to change.
5. Click the "Save" button.