This is from the Manual. The 'icon' referred to is the one like a circular arrow going counter clockwise.
I hope that this helps.
4.2 Auto-switch in Live View
Camera Auto-switch
Purpose:
The video stream of the cameras from the same group will switch automatically in a selected display
window in camera auto-switch.
Steps:
1. Open the Main View page.
2. Select a display window for camera auto-switch.
3. Click the icon in the toolbar and select or customize the switching interval.
4. Select a group and click the icon on the group node.
5. You can click the icon / to pause/resume the camera auto-switch.
6. You can click or to view the live video of previous or next camera.
Single View Auto-switch
Purpose:
The video of all the cameras on the camera list will switch automatically in a selected default view in
single view auto-switch.
Steps:
1. Open the Main View page.
2. Click the icon in the toolbar and select or customize the switching interval.
3. Select a default view and click the icon on the selected view node.
