QNAP Security VioStor NVR (Version: 3.5.1) - Manual (Page 92)

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4.3.3 Edit a Map Name
To edit the name of an E-map, select the E-map and click . Enter the new name and
click ‘OK’. To change the picture of the E-map, delete the E-map and add the new file.
4.3.4 Delete a Map Set or an E-map
To delete an E-map, select the map and click . To delete a set of maps under
the same level, select the map set and click .