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By default, a single Video surveillance monitor displays all windows related to it. The buttons on the top left side of the tools panel are used for changing the number of surveillance windows displayed on the monitor.
Note
If the display of the Control panel is disabled (see Setting the parameters of the Monitor interface box), then the Surveillance windows will be positioned automatically in such a way as to fill the area of the Monitor interface window. Moreover, if the Keep camera ratio parameter is disabled, then the video image in the Surveillance windows will be "stretched" or "compressed" to the width of the Monitor interface window.
The 
button is used to display a single selected window, the other buttons – to simultaneously display a certain number of windows (4, 6, 9 or 16) on the monitor. The set of displayed buttons changes automatically depending on the maximum number of video cameras corresponding to the Video surveillance monitor.
There is a special layout with 6 Video Surveillance Windows featuring one Video Surveillance Window larger than other five. This layout has certain restrictions mentioned below. The special six windows layout can only be displayed by the 
button while the Tools panel is enabled in Video Surveillance Monitor. See pictures below for examples of six windows layout with and without the Tools panel.
Double left clicking in the Surveillance window on any layout, except for the six layouts, allows increasing the size of the Surveillance window, while some Surveillance windows will be hidden on the Video surveillance monitor. Double right clicking on the video allows returing to the original layout.
The mouse control for Surveillance windows number can be altered with registry keys (see Registry keys reference guide). When using the MaximizeCameraOnDblClk registry key, double left clicking switches the Surveillance window to the single layout mode from any layout, including the six layout mode. Also, the transfer to one-window layout and backwards can be enabled with the UseOneClkToMaximizeOrMinimizeCamera key.
The MaximizeCameraOnDblClk, MinimizeCameraOnDblClk and UseOneClkToMaximizeOrMinimizeCamera keys features are described in the table:
| Key values | Action on mouse double-click |
MaximizeCameraOnDblClk = 0 UseOneClkToMaximizeOrMinimizeCamera = 0 or 1 | Standard behavior, the window size does not increase in the six layout mode. |
MaximizeCameraOnDblClk = 1 UseOneClkToMaximizeOrMinimizeCamera = 0 or 1 | The six layout mode is switched to the single layout mode on left double-click, six layout mode is switched to the smaller window size on right double-click. |
MaximizeCameraOnDblClk = 1 UseOneClkToMaximizeOrMinimizeCamera = 0 | The window size is switched to the single layout mode on left double-click, the window size is switched to the smaller window size on right or left double-click. |
MaximizeCameraOnDblClk = 1 UseOneClkToMaximizeOrMinimizeCamera = 1 | The window size is switched to the single layout mode on left or right click, the window size is switched to the smaller window size on right or left click. Note. The first click of the mouse button in the Surveillance window activates the camera, so if the window is not initially active, two clicks will be required to enlarge. |
In addition, the number of video surveillance windows can be changed using the custom layouts - see Windows layout on the monitor. However, the left double-click always increases the viewing window to the full-screen single layout mode. Moreover, if the user layout is selected, the layout mode buttons are disabled, regardless of the number of the windows displayed on the selected layout.
If GreenStream is configured (see Configuring an auto select of video stream for displaying), then when changing the number of Surveillance windows and scaling the video, the video streams used for their display can be automatically changed.
Note.
The Monitor tools panel can be disabled due to the system setup.
If the Overlay 1 mode is enabled during the system setup, then the surveillance window scaling by double-clicking is disabled, and the surveillance windows layout cannot be changed.
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