Dahua DH-XVR54 L-I2 Series User Manual page 85

5.2.2.2 Digital Zoom
You can enlarge a specific area of the image to view the details by either of the following two ways.
Click

want to enlarge. The area is enlarged after the left mouse button is released.
Point to the center that you want to enlarge, rotate the wheel button to enlarge the area.

For some models, when the image is enlarged in the first way described previously, the selected

area is zoomed proportionally according to the window.
When the image is in the enlarged status, you can drag the image toward any direction to view

the other enlarged areas.
Right-click on the enlarged image to return the original status.

5.2.2.3 Instant Record
You can record the video of any channel and save the clip into a USB storage device.
By clicking
automatically saved into the connected USB storage device.
, the icon switches to
, the recording is started. To stop recording, click this icon again. The clip is
General
. Hold down the left mouse button to select the area you
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User's Manual