D-Link DCS-6517 User Manual page 62

Section 3: Configuration
You can define up to 3 rectangular areas to monitor for motion.
Defining
Motion
To add a motion detection window, click the Add button. A motion detection
Detection
window will appear in the top-left corner of the live video. After moving and
Windows:
resizing the window how you wish, click Save to save your changes.
To modify an existing motion detection window, click on the button next to
the window's number, then move and resize it as you wish. You can delete
the window by clicking the Delete button.
D-Link DCS-6517 User Manual 62